I had a blast playing!
The game mechanics are really solid and super engaging; I couldn't stop playing another round.
Don't hold me against it, though, as my artistic skills are more for stick figures than for artwork :P
A small suggestion: I noticed that the game displays text in Spanish and English depending on the part of the game. It would be even cooler if you could choose a language (or if you couldn't, just always have it in English).
Otherwise, fantastic work!