For this currency design I wanted to keep it simple. Each dollar incriment has a different size and color. Additionally, each incriment has a different theme for which person will be on it (and there would be three versions per bill)

1: presidents

5: Intellect (inventors, scientists, etc.)

10: political activists

20: Arts (composers, writers, artists, etc.)

50: Doing great things (aviators, explorers, sports heroes, etc.)

100: American Symbols