Upload & Sell: Off
I'm not sure where to start here. I'm not trying to be a dick at all, but I don't see much good in these. You've got a lot of exposure problems (underexposed mostly), some white balance issues (remember, the shade has a different color than direct sunlight. #2 has a blue cast), and everything is center weighted. Work on knowing your camera and exposure settings, then work on composition. But don't stop working. You'll get better.