well both are good but the black just makes them shine more.

Another vote for black.

Black makes it pop!!!

I vote black also.....

l vote for Black

The black makes the colors much more vibrant. The white gives a more muted look.
Depends on what you're aiming for.
I like the black!

the black seems to make the colors pop

I vote black.

Black brings out the color

Interesting. My reply was going to be black if you wanted the colors to pop. If not go with the white as it softened the colors.