This is very stylistically interesting ! very cute. Your art style is likeable.

The only place that has too little and too much is her hair and heels. She should have more hair where the split in her headpiece is and her heels are to pointy for her laid back expression. Maybe if she had a shocked expression. These are minor complaints though because you nailed the 90's cartoon look by simplifying her features and applying a thick outline. I know I only wrote on this one but your Devil Mercy and Reaper are awesome too.