Crystal's design is very... simple. It's just a white character with blue eyes and pink ears (reminds me I need to redesign one of my own characters). Anyway, the design doesn't say anything about their personality, it's just white. Depending on their personality, try to add some red, blue, pink, orange, a n y t h i n g to make the design original. If you want, I can help you redesign them (if you do want to redesign them, which you absolutely don't have to).

Sorry *grey ears

O Oki