Thanks for sharing your fotos:
I like the overall grainy look - pretty good for digital. The f71 clearly helps with increased focus and lack of distortion. Though, at the same time, it looks so well focussed and composed that it almost looks like it could be a "normal" everyday picture that was then digitally manipulated into what we see above and sold in a store.
Disclaimer: Hope this doesn't offend you, just trying to be upfront and honest with feedback. and of course, its just my opinion.