1st picture is Tongue Lashor from the Masters of the Universe. He was originally one of Skeletor’s cronies but I think he teamed up with the Snake guys seeing as he was a snake.
I think the Masters of the Universe guys were a bit confused because they gave Skeletor Snake Mountain but then made a “snake” bad guy later on. I forget his name but he was pretty bad ass.
Does anyone remember these guys below? I’ve no idea who they are or what they were called. They’re pretty great. When they get acrobatic in the last picture there’s a guy who I think is from MASK lying in front of them.