Help with writing a survey for clients to rate my UX performance/contribution

I'm writing a survey for internal clients at my company to rate my performance on the UX services I've provided. The survey is going to contain a rating system on a scale from 1-5 (and N/A) in the following areas: Qualitative research, Quantitative research, Visual design, Interaction design, Workshop facilitation, Presenting, Writing, Information architecture.

I'm struggling to come up with the best labeling for the star levels. I want it to be obvious to the respondents what exactly they're measuring. What I want to know is what they consider my skill level to be. This is intended to help our new UX team to gather insights on our individual skills and our team skills to uncover gaps and areas we need additional training and practice in.

Has anyone else created a survey like this, or done similar research on personal performance? Any advice?