Hidden Islands

I made some small island terrains. These are only some of them, I am working on another. I am kind of new, I started mapmaking years ago then took a break, and now am starting up again. Please give criticism, comments or suggestions.
Ill add more in a bit.
Thanks

That sky is beautiful....... matches the islands totally. The sun is nice, but kill the ground texture for that building in pic # 6-7. Might also wanna rearrange those rocks at the lighthouse.

Thanks for the comment, ill try to get some of it a bit better, I didnt really use many tiles.

I like it quite a lot, the only thing I don't like though, is the green fog you used, it looks unnatural.

That lighthouse...it doesnt fit there