The Oblique by Moooi is described as a ‘modern designer bookcase’ but can be used to display art or photos as well. It’s available in lacquered MDF or solid oak. No dimensions are given for the one pictured here, but I’d start with a standard 4' x 8' sheet of MDF or plywood and cut it down to the size of my choosing. (Maybe 4' x 6'?) Add to that some 2" x 2"s and you could have a very good--and inexpensive--reproduction.