Recolors with different colored hair are always interesting to me. As much as possible, I usually try to avoid hair color changes since that's part of the character to me, like skin. On the other hand not changing the hair will seriously mess up some color schemes, particularly when aiming for specific references to stuff. Like how Lucas' recolors tend to keep his hair blonde-ish, except for the Claus reference.
The screenshot is actually from one of our earlier builds to make sure the basic re-texturing showed up properly in game. We decided to show it off so folks know we're still working (if at a horribly slow pace).
You guys' concerns have already been addressed in the current version, so thanks for sticking around.
also i have a question, i just doenloaded project M (nohmebrew/gecko) and i was wondering if i can use hacks like this one on project m.
You can. So long as you don't edit the bone set they should work. Sometimes Sonic mods need to be reduced in size, but you should be fine for the most part.