Hello! Please do not finish the contest before the spoken deadline. it's a "opened" competition, and I (probably like many others) are holding a publication until last day- in order to avoid plagiarism.
So you want a normal body woman as superhero in a retro style, right? I like the idea. Any more details as super powers, outfit accessories or anything that you may want for her? If you provide more details will be easier to create what you want.