I made these in GrafX2, put the images together in Pixlr. Left sprite is a original character, though I got no name, gender or whatever for them. Right sprite is of course, ya boi Dusttrust Sans, I made him from scratch too but got heavy inspiration from some drawings and sprites that I found online, some people may recognize some features in Sans from other artists I guess.

I drew the left sprite just yesterday and made a fully fledged animation of things like the scythe or eyes flashing, but since it was my first time with the program, I had problems assembling things and the gif came out with some frames lacking 99% of the objects on them. So I took most of the night to remake them, leading to about 9 total hours on the left sprite.

Sans meanwhile was done just today, took about 5 hours but it was damn fun to do it, just had a few issues with the layers but fully assembled, he looks well put.