I was un-satisfied with the "top" Umbreon model here on thingiverse, I wanted a very smooth model but the closest i could find was a "Low Poly" version named 197_Umbreon and decided to get my hands dirty with Meshmixer and Blender, around an hour later, after messing with subdivisions, cleaning up bumps by hand and cursing blender for randomly crashing.

I ended up with this, a super smooth Umbreon with a low enough poly count to not crush cura and your printer but high enough that it all appears super smooth