Well, your existing collection certainly tells us that you are going for a commercial look. Since commercial people expect their ads to be at a high level of professionalism, you want your photos to be more than just OK, you want them to be slick and polished. As an example, the shot of you jogging through the woods isn't really bad, but think of how much better it would be if you had been brought out more with a pop of flash and the background darkened a bit.
Even though you are just starting your portfolio, I think you have enough that you could consider thinning out a bit. I would suggest dropping the following:
The first one on the bed - kind of blah, shadow distracting.
The hockey shots - replace with a studio shot of you in the gear, but with dramatic lighting.
The straight-on shot in the gray jersey - bland, also don't repeat the same outfit too much.
Add shots of a variety of themes - business suit in the city, etc.