i'm in an 'artistic black hole' if it's possible (and if you can actually call what i do art of course)...
i've tried and tried to make this wallpaper ok... but it's so difficult! it took me ages and ages to come up with ideas and such...

anyways... quit me yapping...

i know this wallpaper is far from being perfect; the tree looks bad and the text is a bit out of context...

do you have any suggesions that could help me improve it? i'd reeeeeaaaaaaally apreciate your help...

Actually your BG isn't that bad considering the softness of the character image. The BG looks mostly hand drawn and is a realy good job IMO. The softness of the text fits the rest of the image so all I would do is darken the color of the text until it partially springs out of the grass background.

is this better?

for me, too much stuff is going on... maybe subtle it down a bit... then again, i love the simple stuff that just flows... ^__^

would it be better withought the tree then?

much better sans tree. I would suggest that the clouds be less blue over the planet. It's okay for them to look blue against the sky but they needs to be grey and white over other stuff. I like this, it's weird. Weird is good.

ok ok i changed a few things...
modified the hill behind and tried to give it a bit more deapth... added the little black monument... and tried arranging the clouds...