This Trainer Card background is Sr. Wooly themed. It is in his logo colors (black, brown, and orange on a white background) and is inspired by the cute pixel style of the game portion of his online curriculum: La Rocola del Sr. Wooly (meaning Sr. Wooly's Jukebox.)
The brown box is for the character sprite and the orange rectangles are for Pokémon icons.
Name (nombre,) (friend) code (código,) and badges (medallas) go where they are labeled; note the orange bubbles for the latter.
I made this entirely from scratch, on Piskel (the same website I use to edit Trainer sprites.)
Señor Wooly Trainer Card Background
by 016_The_Electric_Dream
