Ok, so some feedback?
Ill try, lol.
I dont know if it's just the way ur presenting it, but the border on the final image is waaay to thick. I'd also prolly made the rainbow, the kid, the horse and the land they're on a little opague, so u can see the nice bg you got there. The bg and the forgeground (cloud included) dont seem to mix too well, they both look like they're from different pictures. Id drop the opacity just a wee-bit, so the very strong, solid colours in the fg can suit the bg a little more.
As for the picture of the horse, that you drew, his eyes are creeping me out, lol.
That's just my opinion on them. Nice to see something very different on here, not just in style but in genre! I'd like to see some more work of yours, in this style if u have any.