Nice of you to heed the suggestion to limit the number of images, it makes it much easier to view and offer some sort of constructive criticism. Thank you for that.
Now here is what I think.
There re many different types of photography such as portraits, landscapes, fine art, abstract, architecture, erotic, pornographic, boudoir, macro photography, astrophotography, etc.... Within those types each photographer will develop a sense of style that eventually will reflect his unique view and interpretation of the world he is imaging. That takes time. However everyone has to start somewhere.
I'll assume that the two images you present are meant to be portraits. Portraits, in my opinion, are descriptive images of people to show their character, or their mood, or their activity, or their involvement within their environment while attempting to stay sympathetic to them. Your two portraits do not quite achieve this.
The young man on the beach: his elbow is cutoff, there is too much space around him that does not contribute anything to his portrait, he is lit by direct harsh sunlight causing him to squint, the background is distracting, horizontal framing might have been the wrong choice, the horizon appears tilted. This image is a snapshot of your buddy on the beach. As a client, I would not pay for this. Do not include it in your portfolio.
The two young ladies having fun at the market. Nice concept but there are a couple of things wrong with it. This portrait is of TWO persons so both should have been in the frame. The brunette has been cut in half. An environmental portrait (person interacting with the environment) should have a deeper depth of field. The red head's hand in the foreground should be in focus. There is just a touch too much head space for the amount of body included. This is stronger image than that of the guy on the beach but still not worth paying for.
Keep trying, you are on the right tract. We know what the subject matter is, the exposure is good, the camera is steady and the processing is not overdone.
Take the above as you wish, I'm just an old man rambling on. Others might join in with some more appropriate critique.
edit: Traveler, you beat me to it. Nice post by the way!