"Mate in 2" - A painting and a chess puzzle.

My dad painted this one. Who can solve it?

By the way, the Black King here is Don Quixote... taken from an old Don Quixote themed chess set we had in the house. 

Push your heaviest piece of artillery to the nearest windmill. When it sweeps your piece of the earth, use the opening it leaves behind to drive your sword into the heart of your foolish adversary!

Who can solve that?

har har  it's actually a tricky mate in 2... try to find the solution!

I just did but you didn't decipher my message. Try the Da Vinci code before moving to the heavy stuff

oh hey - just reread. NICE! 

I like the painting  I solved the puzzle (by looking at the painting), but first I was trying to figure out which way the pawns were going. xD

I believe this is the puzzle position and the solution I found ...

Oh by the way, forgot to post in the puzzle, but Black is in zugwang because the Bishop is forced to defend a7 constantly. If after Ra6, a Bishop move is played: it loses to Rxa7#

That's right KeSetoKaiba! 

It's a good puzzle, eh? (and a decent painting   I wonder if my Pa could offer a "paint your best checkmate" service to chess nerds everywhere)

good painting!