That's a Sans created by me named Bloodlust.

Here's the translation of my bad handwriting:
-killed his au
-loves to dress like other Sanses (cosplayer ;3)
-can change his 'pupils' (I dunno how to call it)
-loves to tailor
-can't stand being betrayed
-legs are made of metal (he's smaller than a normal Sans, because of that)
-is actually pretty nice

I hope you liked the first drawing, if you have any advices, please tell me!