For something like that you might consider a colored mat, or even a double mat with some color. Something mild, probably. The print has enough color in it that I think a monochrome mat is going to look a little odd. If you do go white, make sure it's WHITE, not a cream or similar.
I usually ask the folks at the framing shop for advice, and more than one shop has given me some good advice on that front.
Big mats, lots of mat. I've never regretted one penny I've spent for mat board.