Ok so my two cents from a photography students pov.
Seagull: The rule of thirds is cliche at best, I think a tighter shot would give a better feel for the seagull. There is way too much negative space at the top ,and that's coming from someone that shoots with a good amount of dead space
Wind: This one is pretty nice, but what does it look like in color? Depending on the color of the fabric, it could look nice in color. As for a B&W you need much more depth in your colors, try the black and white adjustment in photoshop.
Typewriter: Very nice selective focus and the B&W is pretty nice with this one.
Hula: I love this one, the depth of field works great with this shot. The colors are also very nice in this image. It almost has a lomo feel too it.
Train: For this one you need more depth in your shadows and highlights. Right under the car there is no information so it just drops off. This could work better with hdr to pull out different tones.
All in all these are pretty good, the rule of thirds is played off a bit much, you don't need to exaggerate it so much. After looking at your other photos, you seem to need more dynamic range in some shots, I think you could come out with some stellar shots. Also try the B&W adjustments in photoshop, they are soooo amazing!! You have nice work, but you could have stellar work

You also have amazing use of natural light!
p.s. added you as a contact, I wanna see more!