The picture won't load for me. But from the thumbnail, the shrimp looked like Sexy Shrimp (Thor amboinensis).
Thank you very much birdsandbats. I also can't open the photo anymore ( ??? ). Checked this species on Google and you seem to be right, thanks !
Picture isn't loading for me either. From the thumbnail, I agree on the shrimp ID and the snail belongs to the genus Babylonia. I do not know distinguishing characteristics between members of the genus.