I posted a file but it was the wrong one:
https://e621.net/post/show/1703899/2018-anthro-anus-blue_fur-blush-fangs-female-fur-h
Better quality/brighter: https://66.media.tumblr.com/5e07e10ef1bbe42b0a3590f20c47d9f6/tumblr_phz0bqpfd61w66th3o1_r2_1280.png
Its just the brightness + contrast change honestly, but I still think its better than the other one. Might just be personal preference though
Updated