Some framing ideas:
Photograph matted in soft white (4-ply or 8-ply) mat, in a square cap gallery white frame.
Photograph framed to edge in custom closed corner white frame with wide (2-3”) face.
Collage on canvas, floated in a black floater frame with wide face.
Drawing on paper floating over gray backing, within a ~2” hand-wrapped linen mat with gold filet in traditional black frame.