lylejk
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First of all I want to that germartz for allowing me to use his photo which is located at this forum's post: https://www.fredmiranda.com/forum/topic/178733
Anyway, I originally set out to emulate a Cézanne, but the final result came out this way. I really like colors, so this one is a keeper (I might try to do a more true to form Cézanne later). Anyway, per germartz request, I'm giving a more precise outline of what I did (minus the filter links, since I did that in past posts):
The programs used are GIMP, Mayuradraw, and Autotrace.
Pre-processing step:
I first opened the image in GIMP and resized the image. I duplicated the layer, and then cutout the shot glasses and bottle and copied them to their own layer. I processed the background separate from the bottle and shot glasses. I first used the Unplugged effects difference noise filter to add a little noise to the background. I then used Toadies Crazy Colour Waves filter which adds the color and, believe it or not, a lot of the texture in the background; I guess the jpeg artifacts were amplified with this filter. For the bottle/glass layer, I did a lot of experimenting and can not accurately outline this, but here goes. I first duplicated this layer and then used Unplugged effects difference noise filter to add a little noise to this layer. I then used Flaming Pear's pixel trash filter (grayscale, Courseness=0, Range=10, Sharpen=37, Radius=17) to give it a more sketch look. I then duplicated the non-modified layer and moved one of them above the previously modified layer. I then set the moved layer to color and merged it down. I did not really like the result, but I liked the various speckling colors, so I duplicated the wine/bottle unmodified layer and set the resulting modified layer property to difference and merged it down. I then adjusted the opacity of this layer to taste and merged it down. This gave a good color specking feel to this layer. I then flattened all the layers and saved the result.
Vector step:
I used Autotrace to convert the bitmap into a vector; below is the batch file that I used:
AUTOTRACE -corner-threshold 60 -despeckle-level 6 -despeckle-tightness .1 -line-threshold 0.1 -width-weight-factor 0.1 -preserve-width -remove-adjacent-corners -output-format ai -output-file c:\temp\a.ai -report-progress %1
AUTOTRACE -corner-threshold 60 -despeckle-level 8 -despeckle-tightness .1 -line-threshold 0.1 -width-weight-factor 0.1 -preserve-width -remove-adjacent-corners -output-format ai -output-file c:\temp\b.ai -report-progress %1
AUTOTRACE -corner-threshold 60 -despeckle-level 12 -despeckle-tightness .1 -line-threshold 0.1 -width-weight-factor 0.1 -preserve-width -remove-adjacent-corners -output-format ai -output-file c:\temp\c.ai -report-progress %1
AUTOTRACE -corner-threshold 60 -despeckle-level 16 -despeckle-tightness .101 -line-threshold 0.1 -width-weight-factor 0.1 -preserve-width -remove-adjacent-corners -output-format ai -output-file c:\temp\d.ai -report-progress %1
I then used Mayuradraw to merge the four resulting illustrator files, and exported the result into a bitmap.
Watercolor finishing step:
I overlayed the vector/bitmapped layer on top of the original watercolor layer and set the v/b layer to dissolve. I lowered the opacity of the v/b layer and aligned it (necessary since the resulting bitmap is larger then the original watercolor). I then set this layer to dissolve with the opacity set to 60%. I flattened all layers.
Oil step:
I first duplicated the layer five times. I run GIMP's Gimpressionist filter on the top layer per the following: Brush=crayon07, Orientation (Directions=8, Angle span=180, Orientation=Flowing), Size (Minumum size=12, Size=Flowing). I set this layer to 50% opacity. The second layer I again run GIMP's Gimpressionist filter on the top layer per the following: Brush=crayon07, Orientation (Directions=8, Angle span=180, Orientation=Flowing), Size (Minumum size=20, Size=Flowing). I merged the top two layers and then set the opacity to 40% and then merged it down (all of this is necessary for the brushstroke). I then used GIMP's bump map filter per the following: All set to default except the Invert bumpmap setting is checked. This gives the oil relief, but the dark colors tend not to get this feel. I duplicated the layer and then used Cybia's transparency filter to remove the light colors. I then set the dark colors layer brightness level to 50 and run GIMP's Gimpressionist filter per the following: Brush=crayon07, Orientation (Directions=8, Angle span=180, Orientation=Flowing), Size (Minumum size=20, Size=Flowing). I then ran GIMP's bumpmap filter per it's default settings. I then merged all the layers. Still not happy with the textures, I duplicated the layer and did some additional iterations with GIMP's bumpmap filter (hard to track these steps, but I played with the elevation and depth settings as well as the map type and the Invert bumpmap settings (all this included isolating parts of the image including the red bottlecap). When I was finally happy with the texture, I merged all the layers and got the result that I like.
Again, this requires a lot of interaction, so, it is not just a simple filter. Just click on the thumbnail below to see a bigger picture; to see the hi-res picture, just click on the bigger picture. 
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