I agree, keep tabs on your photos, in fact have a friend help you take them and then go through and find the best ones, closer up ones are better. Sorry, but people are visual when it comes to selecting, play up your best features and shoot away. Don't get too discouraged at first, sadly some people are hung up on the physical and won't bother contacting you unless you fit a certain ideal that they have. But guess what? there are so many others out there that look beyond the physical. Make your info intriguing and draw them in, nothing wrong w/showing a sense of humor if that's a strength.
I can't recall what site I was on way back when, but it would let you know who was looking at you - sorry but I was in my mid 20s-30s in age and when I saw these old guys of 55 on up looking at my profile, I GOT discouraged (and frankly kind of creeped out), but in the end had a laugh - at least someone was looking to start with

. Good luck with it, give it some time, the rest will follow.