I've not tried these shots before, but I think yours look nice. I like nos 2 and 3 of your water droplets. I actually find that the grainy effect looks nice too , but i think a shiny picture would give it more punch, though would be the same as what most people have done.
You have some nice pictures in your portfolio too. But I find the shoes lack proper focus point, and not enough dof. You do freelance work?
