Not quite animated, but here is my most recent addition to the SFM workshop. With the help of WWMT :)
http://steamcommunity.com/sharedfiles/filedetails/?id=686820984
This is also coincidentally my first full-fledged character model that I ever released to the public and I'm happy he's gotten so much positive attention in just two weeks, even as a beta model. I will definitely be making more in the future now that I've learned more of the ropes of using Wall Worm.
Awesome stuff! Keep it up :)
(https://www.wallworm.net/proxy.php?request=http%3A%2F%2Fvignette3.wikia.nocookie.net%2Fp__%2Fimages%2Fe%2Fe6%2FAlphys-0.png%2Frevision%2Flatest%3Fcb%3D20160207005427%26amp%3Bpath-prefix%3Dprotagonist&hash=94524cc82e4a5edf2b379b5da51c61f8b019f2f0)
Probably my next project, since she's had no love on SFM.
When it comes to Undertale there is very little to go by for references. Though I can always make sketches. I did the same with Sans.