Woah, Tracer is thicc. Maybe a bit too thicc: The one thing that stands out most is her visible butt-cheek, I would raise it so you could only see a little bit.
I noticed in some of your other pics that the tights compressions need to be more subtle. Here's a good tutorial, you might have seen it already: https://www.deviantart.com/mldoxy/art/Tighty-Tights-Toot-470068729