You seem to be aiming towards fitness, have you considered doing a session for a fitness magazine/photographer?
Try and book a proper studio session with a pro MUA and get the essentials out of the way, that will get you some bookings or at the very least will get your foot in the door for castings and tests.
Find which style/genre you would like to get jobs on, gather a series of sample images on those genres and start building up your port with photographers and MUA's that specialise in the concepts you chose.
If you would like to shoot something other than fitness try and work on shaping your body to the genre of choice, based on the images on your port I'd say you are in the middle, not extremely into fitness but not really into the "curves" side.
I hope all that makes sense, work hard and good luck!