Online dating is like browsing through a catalogue. You might see something you like but you wont know until you go to the store and try it out for yourself.

Also online dating a convulated mess. Half of the people are "just browsing", then other half will deny they are looking to date outright.

Finally, don't add a picture. Nothing good can come from this. Either it's a bad picture, and people will hyper focus on how bad it is. Or it's a good picture, and you'll end up feeling like a cheat. People make all kinds of (wrong) assumptions from a picture, and unlike in the real world where interactions are paced and spontaneous, people "browsing" online have hours and DAYS to analyze everything about every picture you post (and they will) and every reason in the world to find something wrong with it.

So just don't, if anyone asks for a picture, and you feel you've gotten to a point where it would matter, just send them one at that point.