Sweet designs. Try not to use 100% black in your paintings. Think of your darks ( on a scale from 0 black to 100 light) as 8 or 5 at 30 or 40 saturation. Red cloth would be like 70 or 80 percent saturation in the shadow, and the accents have color in them. Just don't ever use pure black because that creates a black Hole in your pIcture that SUCKsss all possible hope of achieving good readable values. Try using the HSB slider if you use photoshop.