I like the angle. I think it's got an artistic flair to it that makes the photos stand out. But I agree you should make sure the whole item can be seen. I'd also add that it IS distracting to have some photos upright and some angled. It it's your plan to angle everything, great. If it's not, then I might suggest you keep the angled ones on different pages than the upright ones.
All in all, though, I really like the look.