Flo's sketchbook

[atrenr]

I think you really nailed the palette, it has that 2d platformer feel. While I'm no enviro expert I'll try and give some tips.

The left tree's branch looks like it connects on the backside of the tree but the lighting suggests it's lined up on the side. It should be coming into the foreground since the tire swing is a platform to jump on. In the river (this is more a game design thing) there are rocks following along the foreground, this implies safety to jump on and the player might think it is safe to jump/fall down into the river(I know got me acouple times haha.)
I'd pump up the "I'm a bad guy" look on the hedgehog as it is a little neutral at the moment.

The biggest problem I think, is the right side. I couldn't quite make out what it was. I think a floating platform infront of a receding hill?
If it is actually a small mountain in the background, I would lower the feather power up so it clips the top, showing it isn't floating on it. and de-saturated the top because it reads as foreground.

Spoiler

Hope this helps.