Theme 18: Rainbow

For the 100 themes challenge  100 ThemesThis has been going around DA for a while and I have finally succumbed...the 100 themes thing. I didn't think I'd do it, but what with my general frustrated/fed up nature, I thought it might do me good. Sure, it'll probably take me most of the decade, but what the hell. Let's give it a go, shall we?
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The point of this challenge is to test and improve your skill as an artist. After 100 pics who wouldn't be better. Please forgive me if this in any way excludes you from taking the challenge.
The rules
1.) Make 100 pics each pic having a theme listed below. Each pic should have ONE and only ONE theme to it, for it to count.
2.) No time limit so have fun
3.) The main picture should be drawn but not limited to. for all fair purposes, people are allowed to use their paint programs and photo shop to create the pic.
3a.) pics should be of own artistic ability. You may not edit photos, or break any other rules set out in the Da e

My usual colour pallette, for most of my characters, tends to be some combination of black/grey/brown/sludge. And then there's Tad, who's got enough bright colours to make up for everyone else.

Resources used:
Graffitti background: 
Pose reference: