So This is my 2nd Attempt at drawing swap sans. The first time didn't go so well, Also I know I made his arms somewhat thin, Even Though it was an accident my reason for it is because Sans And Fell Sans's Arms arms are in their Jackets They aren't exposed and it seems like they aren't very thin however since Swap Sans Doesn't wear a Jacket his arm s are exposed and they are somewhat thin. (They are Bones after all).