Since this was a pretty good go at the "one layer" thing many people seem to wanna learn but are struggling with, I thought I'd elaborate a bit on how I did it.
If it's too "draw the rest of the fucking Krampus", feel free to ask me for help on discord!
Also, right before posting this I reuploaded the files in the original post with some better face and dong details, so you might wanna redownload those!