Upload & Sell: On
+1 @ Karen & Scott
#1 is the most arresting of the group, but the single LONG SKINNY line has never been one that I've found a good way to pull off in a comp. It becomes one that has little to engage the viewer, so the viewer can leave just as quickly as they stopped to check it out.
#2 is my favorite use of lines in your group, particularly the road supplementing the fence and the lane of grass between them, but it is an image theme that has been seen once or twice before, so won't likely gather much fanfare ... btw, CONGRATS on your recent MA win.
#3 I kinda get the looking through the castellated rook as lining (line) up your sights on a target, but I think it is way too sublime for anyone to notice and is overpowered by the rest of the image's randomness.
#4 I see the bishop-bishop line that exists, but with the rook in the foreshortened perspective, prominence goes there, both in terms of visual power and in terms of chess, the rook being considered of greater power than bishops. The king & queen are minimized by their position/distance as well as the truncating of the king's crown. I also see the line of pawns, but they aren't very straight, so they don't exude "line" very distinctly. I kinda dig the two lines, one implied (bishop-bishop) and one more tangible (pawns) ... I'd take another stab at this theme, maybe giving more credence to the relationships of power both in chess & visual prominence of scale and weighting so you don't have the incongruity.
As to your style ... I don't think your processing style is doing you any favors with this theme. I know you lean toward that gritty, hdr-ish style, but lines are about definition, and grainy is about lacking definition. Their individual impact is a bit at odds with each other, so it can be a tricky proposition to play them off one another without the incongruities reducing the power of the image.
Not exactly a ranking, but here's my .02 at them ... now if you could just roll it all into one.
#1 Most Arresting
#2 Most Pleasing
#3 Most Sublime
#4 Most Studious
Personally, I'd see if I could transform the sublime of #3 into something powerful, like looking through the sights of the rook at the King with little else on the board to detract from the focal point. The foreshortening of the rook would exude its power over the hapless king minimized by is diminished size in the distance. Maybe a staging that shows checkmate as well. I think you could put together a unique and dynamic spin on the theme ... now you've gone and gotten me thinking about too.
HTH, GL with the MA.