Dreams of Colour

EDIT: This is going to be my entry for the Before and After Contest. My two before deviations were Commission - ChanglingPrinceThorn and Last Day on Earth. The feedback I used was
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"At least I'll feel
The warmth
Of the sun.
Within my dreams
Of colour, all my
Fears are gone."
-- Dreams of Colour, Elliptisoar [link]

See those lyrics up there? That's my creating song. While I play other music when I paint, ever since I discovered this song, I have always played this song at least once while I painted. So I decided to paint something specifically inspired by this song. I also really wanted to paint Rainbow Dash. As much as her mane should be a pain, I like to paint it too much .

I think this might end up being my entry for the Before and After contest. I actually made something specifically for that comp, but I can't find it any more -.- It sucked anyway. This shows what I learned (except for wing anatomy) and doesn't suck.

Any feedback or concrit on this would be great! I'd list what I'd specifically feedback or concrit on, but we'd be here all day. So any and all is welcome. Stuff on the shading, the composition, the anatomy, anything!

Lines drawn with lead pencil on printer paper, coloured in GIMP 2.6.