AI Tools for Graphic Design

Hey everyone!
I am an intern and one of my tasks is Graphic Design. I have never done that before and sometimes I am struggling with finding the right balance in visuals, colors etc. Is there a good AI tool analysing scetches or making proper suggestions on how to enhance visuals? I have tried Gemini for that but the outcomes are mostly useless and it’s not worth the time.

You can try to generate banners for your brand colors and styles.