Signing the work
From F. Lennox "Lenny" Campello at Art-Tistics
Amateur photographers are especially fond of signing their photographs with gold or silver pens. Did you notice that I wrote “amateur?” The visual presentation of a photograph should not be marred by that kitschy practice. if you sign your photo on the front, do it discreetly on the margin; otherwise sign it on the verso, also on the margin. I’ve also seen the practice of signing the mat in pencil, and I am OK with that, although I know some gallerists and museum symbiotes do not like that practice either.
Let me be clear: the art must be signed.
If the signature distracts from your own personal aesthetic, then sign it on the back of the work. To be blunt, most collectors demand signatures and there’s ample empirical data that shows that unsigned works always get less in auctions than signed pieces.