Tip: a bio should reflect your personality. If in doubt, keep it short, professional and simple.
My name is [John / Jane], I specialize in [people / wedding / sport / corporate / ...] photography. My style is based on [realistic images / vivid colors / delicate palettes / evocative atmospheres / ...], my images emphasize [...].
My clients include [ families of all backgrounds / local businesses / magazines / ad agencies / architects / ...].
I live in [...]. I enjoy spending spare time [ playing with my two daughters / running with my dog / climbing wild mountains / cooking Thai food for my wife / reading classic novels / ... ].
This might be a good place to add client references, or a form to subscribe to your newsletter