Edit: Before you start writing a treatise on the socio-economics of contemporary market-based internet dating in the age of diverstity.. just try the following:
1. Put up a crisp, clear picture of yourself dressed nicely with a smile. Put up a second clear picture of you doing some kind of interesting activity (hiking in the wilderness, doing art, playing with a puppy, etc).
2. Write a self-description that gives off vibes of you being a generally positive person, and relatively charming and perhaps a bit funny. If you can't be charming, you can at least be polite. If you're not funny, you can at least be lighthearted.