NSFW Flash Gordon sketch cover

Done on Whatnot @JoltinJohnnyLucas

I started this before realizing it was one of the truly crap Dynamite covers, that has the odd tendency to not want to take ink or color while not wanting to allow erasing of pencil.  I googled jesso for watercolor and found watercolr ground.  I applied a layer of it and, after letting it dry for 24 hours, it took the watercolor. I don't love thew surface it creates, but it's acceptable.  The buyer was happy, anyway.