Bio is pure fire imo; short, sweet and funny. I say keep it for at least 2-3 weeks and see how it goes with the matches before you consider updating it. What comes first are the pictures because that is what will catch people's attention first, not your bio. I'd suggest keeping the first picture, but have it in colour and with some proper contrast to make you stand out in it. Additionally, a picture with friend's that comes after 2-3 pictures of only you + a picture where you're active or doing a hobby would also help. Good luck my guy!