Contrast is somewhat of an art - as if spriting wasn't either xD
Here's a link to a colour wheel for ya:
http://www.faceters.com/askjeff/answer52.shtmlWhat I mean by contrast is this (using my sprite as the example):
Her hair is orange/blonde. More orange than yellow as you can see. The four base colours are different shadings of the main colour of the hair. The contrast colour on the other hand is just slightly different mixture wise - there's more yellow in it.
This is where the explanation gets complicated. As you can see on the colour wheel that I've linked, each colour in that circle is a mixture of another. Starting where the orange side is, you can see that as you move around the wheel in either direction, the orange is being mixed with another colour (yellow or red, depending which way you go) - that's what I mean by contrast. You're changing the mix of the base colour just slightly, then upping the saturation to make it pop - this will make your highlight colours really stand out.
Hmm, I tried to make that as un-confusing as possible. True contrast is taking the colour from the opposite side of the colour wheel - but that is NOT what I mean here. xD
All you can do really is play around with the colour mixing in the pallette of whichever program you're using to make your sprites. I use paint. Yes. Paint. Go ahead and facepalm now >_<
You can always undo something if you think it looks wrong. Play around with saturation levels, and different mixtures.
Just a side note here, higher saturation looks much more cartoony than colours with a lower saturation - imo, the only place you can get away with a higher saturation is the hair (that is if you're aiming for a more realistic looking colour scheme).
Last, but not least. Much better on the shirt! The black outline that you had used before was really drawing away from the shirt. It looks much better now. Good job

Just curious here, how many shades/tones of colour are you using to create the shirt/clothing?
Would it be possible for you to enlarge your sprite so we can get a better look at it? Open the sprite with paint, change the view to 800% then press printscreen on your keyboard and load that screen shot into photoshop or another image editting program and chop away the excess image, and then load up that enlarged image of your sprite to your photobucket or whatnot. That way I can help critique it better
This post has been edited by literarygoth: Sep 4 2010, 10:44 AM