Got Wood?

The species of wood are walnut (brown color) mahogany (red color) birds eye maple (the floor piece with round circles) oak(under brown car) Then the 2 harder ones cherry (underneath the orange car) and poplar (underneath my walnut axle holder)

So the answer is 6.

I threw in the background wood for fun, it is crotch mahogany (1840's vintage)
 
Brian, I recognized the Bird's Eye Maple. I have a pool (cue) stick that uses this wood in the forearm and several other woods inlayed around it with an Irish linen wrap/grip.