Request: Unexpected Battle

requested by SuzuOngaku

Suzu wanted a fight between a Serperior and a Galvantula. Because I was away for a while so i forgot this was a trainer battle, and made this picture in Chargestone Cave... even though Galvantula aren't found there...(and that's how I came up with the title lol)
Not that happy with this picture though, the background is pretty bland
(P.S. this is the 3rd time i've drawn Serperior, I Love this pokemon, but why does he keep showing up 0.0?)