Not at all! You're free to do what you'd like as long as I'm credited for the doodle <3

Any artwork by me has full permission of editing, this includes adding colour and fixing lineart or making a bg for any art I've done that a person owns. If the character is not yours, you are not allowed to edit the art without permission from the owner. That art belongs to you, you cam do as you please! Make sure to add credits to yourself saying the edits you made <3