Trivia: 3 or 4 Planks?

Think you have an eye for details? Prove it! Which one is correct? Mark(on the right), or Albert(on the left(and Albert is based from Kevin in Ed, Edd n Eddy))? Or is it the tricky picture of the planks? Answer in comments!

Mark & Albert belongs to Me.
P.S. Sorry for Albert's outline.