Good job on putting yourself out there. I'm gonna list my feedback but bear in mind I've spent the past 2 months studying up on photography so I'm quite nitpicky when it comes to composition etc.
1 (Bachata) - Like the idea behind it (& could possibly be a good supporting pic) but the people in the background are distracting. If you could get a similar shot again but angled so it appears that you & your partner are the only ones there, that would be lit.
2 (Back) - Not a fan. Won't add anything to your dating profile
3 (Bali) - I actually like this pic. The only thing would be to maybe crop in tighter so it cuts off at your hip. Since it cuts off at the knee it looks like it was more accidental than intentional & that you don't have feet lol.
4 (Profile) - To me this is more of a LinkedIn type pic. If you're gonna use a plain backdrop and a neutral t-shirt, add some accessories etc to give you some edge and make you stand out a bit more
5 (Tilted) - Don't know if it's the tilt but your facial expression looks creepy. Nice background though.
6 (Workout) - Can't tell 100% but it looks like your forcing a smile whilst holding yourself up so it doesn't feel 100% natural. You could probably shoot it again but keep a straight face or look like you're actually working out. Also, if you've got the physique you could do this one topless and it wouldn't look out of place.