Not specific to your resume itself, but be careful of your phrasing when speaking to potential employers. You mentioned in your OP that you do design work. And here you’re throwing out a statement that could instill doubt related to your competency with design work.

Others have given you fantastic feedback on the resume itself, so I won’t go there. But I wanted to point out how easy it is to add in extraneous details while speaking that can undermine otherwise solid interviews. The above could have the entire middle cut out and say “Extremely helpful. I’ll revisit - thank you” and an interviewer would see it as being open to feedback and a net positive. With your original statement, they’d see “lacks confidence in design skills, but mentioned design skills. Wonder what other listed skills they’re not sure about” and the positive component of being open to feedback would be lost.

Your openness may just be due to this not being an interview environment. But wanted to point it out just in case. :)