The mountains could also be different and the front of the platform needs a bit more texture. The grass should be less repetitive and natural looking.

Ditter the sky

Looks a lot better
dither the layers of the sky together (probably wrong terminology but I think you get the idea)

I think I finally got this dithering thing down

The dithering looks very Spray Can-y. Try the structure the texture a bit more perhaps?

Just try and tie the shades in together, not throw them everywhere.

No you remove each color in between by dithering

I'm trying my best but this isn't easy......... I only have five colours.....

That effect looks really good, nice job.

the sky is so much sexy. but that twirl and the platform looks dirty

How about this?

you're on the right track your idea is good but it looks flipped to me lol

btw what is that platform? it looks dirty

and the rocks look too saturated and outlined for something in the bg?

It's a fighting platform, It there for storyline reasons. The rocks were given an extra shade of gray for saturating problems and to make it look like it about to rain, which is why the green grass is greener. thanks for noticing

I have a feeling this will be nearly perfect when I'm finished. The platform will receive a complicated shading treatment.