Sorry about those negative votes without explanations... I'll try to make up for them. See your top border? That one was fairly good... Just make sure when you're editing your image, that you don't change any of the borders, otherwise it may look blended but when you put it up it looks unblended. Another thing.. I think I saw this somewhere, try to pick out tiles with just one edge, three and four edges can be extremely difficult to pull off. If you're using Photoshop (or Paint Shop Pro, I think) you can smudge the edges in to get a good blend to start with (But don't use smudge and smudge alone, or it will look very newbie)... Make sure you use your color picking tool to get the right colors, and start drawing. Make whatever you want, try to continue the overall scheme of things if you like it, and try to get things to span more than one tile.. Don't do that every time, though. Sometimes you can just see some shapes and colors and suddenly something will pop into your head as to what it looks like.. go with that. :) Other than that, practice, practice, practice.. and remember that blending is the key.

If you get another very difficult tile like this, go ahead and hit the refresh button and press the "Cancel It!" link. Give it to someone else.