Color it! You may change the line art a bit, but not too much! Adding music and a background would be better! See inside for examples! I suggest, For shadows and shading, choose a direction that the light comes from.
Even though she has her own Scratch account, this is made by my sister. Why did she go onto my account? Because I accidently left the page open on my computer, and she must of thought it signed in as her.