Is it ok to mix wood species?

Yes! Now I'll be the first to admit in the past I thought the mixing of woods was the unwritten 11th commandment, but I've changed my mind now. As a matter of fact I believe when done correctly mixing wood species can add real character to a space. The samples I've chosen are actually of wood floors that were laid using two wood species on each floor.This could serve as a "guide" to what species looks good when mixed. I've included examples of floors that I thought would work well in both contemporary and traditional spaces. While the alternating wood squares and wood insets have a more modern look, the ornate detail of the wood border lends itself to a more traditional style. I think the last photo, which appears to have the wood planks laid on a diagonal pattern could work in either setting. What do you think? Let me know!