The guys at Fish sauce have a great powergirl image coming to you this weekend, with PSD's at the end of the month:
http://fishsauce69.tumblr.com/post/161552232968/power-girl-creamed-update-our-june-end-of-the

Check them out. They also have Undyne and Empowerd up currently too.
https://www.patreon.com/FishSauce