Hi Misha,
Thanks for posting your new work.
Positives:
(1) I think that we all agree that your photographs are very strong. So, that part is in the bag.
(2) The site is very easy to navigate - very clear cut.
(3) I enjoy the site colors - they lend to a very elegant over-all look (also, I must add that I love the banner with the mountain..part of me thought it was perhaps a bit dark, but I later gathered that you did this intentionally).
(4) Thanks for adding NWP as a link. You put us in with good company.

There are some minor areas of your site though that I think you may want to look at.
(1) Once you have clicked into a gallery, it might be nice to be able to click out of a root and back into the gallery list in one click. The way that you have it set, the moment you click into a subgroup (like Sierra Nevada), in order to see the various directories, you must take two steps to get back and visit your photographs.
(2) You may want to consider doing your photo galleries in flash. Some of your images are quite good, and I would worry about some of them getting ripped - particularly as all of your photos are not branded on the site. The great thing about flash is that they cannot be ripped off in the same way .html files can be.
(3) ...and this is a knit pick...Misha Logvinov Photography - I think that the word 'photography' is kind of hard to read and blends in a bit too much with the background - though it is pretty obvious that this is what the site is all about.
Cheers
James