A lot of those are really good photos, and I really think that a good photo is critical for success on a dating site. It's not just about being physically attractive, but that a good photo conveys personality -- including the sense that you care enough about your profile that youre not just grabbing the first selfie off your phone.
That said... in my personal experience a good candid shot is more effective than a portrait. These portraits are all lovely but they don't say much about you. One says "I have a dog", and some distinguish "I like cities" from "I like being in nature". But the bokeh removes one of my most important tools for looking at a dating profile -- knowing what to say for my opening line. Being able to look closely at the photo and say, "You like X? I like X too!" or "Tell me about your trip to Y" is infinitely better than "Hi" or "You look nice."
It may be that a good portrait is the best front picture, and you supplement it with candids. A good portrait doesn't make you look good so much as it gives a truer sense of what you really look like.
