>>57643446Showdown has an archive with official and custom trainer sprites.
>https://play.pokemonshowdown.com/sprites/trainers/There are BW2-tier sprites made by Kyle-Dove and hyo-oopa, would recommend checking those out. Unless you're already set on that particular pose (could still replace the arms and legs around, though).
As for backsprites, most decent (official) backsprites are for Gen3, the Gen4 one I found would need some more rework.
The future is now old man.jpg>>57642167>Would not be opposed to monster girl version but don't have the sprites or the money to comm any.At least there are good front and back sprite bases to work with. Been also working on some monstergirl sprite edits since that thread. Wouldn't promise too much though, as it's still experimental.