Oof, those little bittsy pictures in those big ol' mattes are just TOO PRISSY!
That's minimalized art to tuck away in that short section of wall in entrance way. Rather it's not art at all, it's Decor. Anyone planning to do that should also consider 12 ply mattes with 3" openings as deep as the Grand Canyon. The local art supply carries premade 3/4" black wood frames with 8 ply mattes with cutouts about 25% of frame size. They can't keep 'em in stock.
We did it that way up through at least the 70's because 8x10 was "normal" and the only mounting boards we could get down at the photo store were 11x14 (too small) and 16x20 (too big). Anything bigger was almost unimaginable, things larger than that were up in the stratosphere with the super-pros.
Yes, it's a shock to see those small old Weston and Adams prints. Adams rarely did anything bigger than 16x20 and of course Weston is strictly 8x10. A well known gallery I was in recently carefully segregates their small Adams & Weston prints away from the much bigger work in the main section of the gallery. Jerry Uelsmann 30 x 40, Cartier Bresson 11 x 17, Ansel Adams & Weston 8 x 10.
The surround really does affect the photo. I would rather push the frame out than drown in a sea of white foam within it. To wit, about 2 feet x 5 feet. Put THIS is your breakfast nook, Decorboy!