Some discarded ideas.

A. This was the first design. I was not sure if the color of her pantyhose was correct. I also did not like the lab coat having too many logos.

B. I like this design. Turn the lab coat into a full uniform. I've also deleted the logos from her shoulders. It looks great, but I think the character loses appeal.

C. An attempt to make pantyhose more noticeable. It does not look bad but... I feel she loses charm. In the end I decided on the original color. The dark color is more attractive.