@Hideon:
I am using this dark colors because the tree is supposed to be in a dark forest at night. Here's a mockup to show what I mean:
I bet you can't spot the main character in the picture. 
Ignore the backgroundtrees texture. It's an older version.
Don't you think your colors are a bit bright and saturated for this forest? In this image I aplied your colors:

Your edit sure looks good, but it's another style. I noticed you used bigger pixelclusters and didn't render to much of the trees relief. It looks really consistent. I'll see if I can use that to get rid of the noise in my version. The side-branches are a nice touch too.
Thanks for your edit and your patience.
@Daimoth:
thanks... I gues.

What do you mean exactly?
@Sohei:
I didn't get your reaction too. You think it's that ugly?

Could you tell me what you think is the problem?