Most Helpful Guy
Good to you for giving thought to the composition of your picture. But I vote for neither. Red has its place, but might dominate the framing a bit much. Black might wash out. Unless you take Max's advice and offset your color choice with a jacket of contrasting color to avoid being monochromatic. I'd further suggest that you tone it down a bit with another color, though, and maybe coordinate with what your boyfriend is wearing. As well, you might pay particular attention to the background colors and setting of your photograph, if you insist on red or black, so as to bring yourself into better definition. You want your two faces to stand out from the background. You appear to photograph well and know how to hold your head for a photo.