This illustration is intended to look hot .... as in sweltering! I thought I might put a bright sun behinde Lily's head and then do a radial gradient fill out to the edges. I figured out a couple of good tips while using gradients... never use just 2 colors ie (beginning color and end color) because the colors blending in between get mushy and cloudy. You want to punch in a couple of medium hues on your gradient slider to get those mid tones popping! Here is the type as well...my first attempt at laying in type...I can't believe how easy it is. I love Adobe products!