Nice idea. IMO hat is a little big and needs to cast a shadow.

The silo work on the hat needs some clean up. I agree about the need for shadows also. The sentiment is nice.
You need to post sources as required by the rules and guidelines.

besides the above comments, you should flip the hat cause of the light source. and the stars on the flag in the sky are barely noticable

thx for comments, try to work on it

shadows won't work because i cant :p

you can't what? do the shadows? create a new layer below the hat layer, take a black brush with 0 hardness and start painting beneath the hat where the shadow sould be. then lower the opacity to whatever seems natural and convincing. then you'll have something.

@ elficho: thx, i thought u needed to use al lot of filters etc..

good one