Speedo Time!

[Torchwatch]

Welcome and thank you for sharing your pictures with us.
I suspect that your camera is on a support or mini tripod that brings it to about knee height so it is looking up at you. Next time and please let there be a next time bring the camera up to level with your sternum and the pictures will look more natural.
Holding something in your hands, a stick or an umbrella, a book or a bottle will break you from a hard pose into a more natural position.
Singing Nellie the Elephant in your head while you wait for the camera's 10 second delay will prepare you for the shutter and put you in a relaxed mood.
A good effort and I would love to see more of your pictures, I agree with the previous comment that you would look great in a brief bikini, high cut legs and low cut rear. A photo of you in a bikini taken from an angle as opposed to straight on front or back would look amazing.

Bikini as in a men's swim suit, briefer than a racing brief.