It sounds like you've got a good product in that you're a genuine, non-misogynistic guy and that it's just a few tweaks here and there that will get you over the line.
There's books and youtube channels you could read and watch that will help point you in the right direction.
Pretty good selfies are not good enough. Get professional looking photos. It's down to the composition, lighting, capturing you in a good position with a photogenic expression on your face. Photos taken with you walking towards the camera are the sort that a professional photographer would take.
Your set of photos is only as good as your least good looking one. Discard your least flattering photo.
For the group photo include it only if it's clear which person is you and if it looks natural and is eye-catching and if it sends out a good message to your target audience.
Do you know what sort of woman you're looking for? Can you describe in detail the sort of woman you're looking for? How well does your profile and strategy work at targeting that sort of woman whilst discarding the rest?
It's better to make statements and observations than to ask questions. EG "You seem like an adventurous girl, although I'm sensing you might be trouble" is better than asking "Are you adventurous?"
Avoid job interview type conversations.
Be more flexible about your intensity. Be serious at work and studies. Be light-hearted when socialising. Aim to practise and get good at flirting and teasing and being hilariously funny.
Sometimes when you really want something, you have to change and develop as a person in order to get it.
So that it doesn't cut the mustard for you to say you don't flirt because it feels fake and out of character.