black and white flora images

Angie + Nav Dhillon of London, Ontario recently sent me these images of my photographs hanging in their home.  Here’s a better look at each of these images: 

Calla #1, 8″ x 10″ contemporary fine art photograph

Pine Cone #26, 8″ x 10″ contemporary fine art photograph

Gerbera #61, 8″ x 10″ contemporary fine art photograph

Generally speaking, what colour of mat and frames do you like to use for artwork? Do you stick with the same scheme throughout the space or do you prefer to match it to the individual piece, wall colour, or surroundings?