2nd attempt replying...hopefully I don't double-post.
No idea on the srimp, never seen one of those before. As for the hermits, I would guess Clibanarius erythropus. That said, in the last few months I've observed quite a lot of color overlap between some Clibanarius digueti and Clibanarius erythropus, but it seems that C. erythropus either doesn't develop any blue spotting on the legs (or devlops less of it than C. digueti) and has more prominent blue striping on the tips. Since yours show no speckles on the walking legs and have very well defined blue stripes on the tips, I would guess C. erythropus.
