I like how you use white space to imply depth. #82 is very cool, just a bit too skinny and fragile for my taste... I also don't get why there's a box around the "HOT" in "photo" #78 and #79 have depth, but they feel like elements floating in space instead of a solid icon shape. #77, #76, and #75 all look like they say "OP", "UP" or "P" to me.
Thanks for comments. Try to come with new designs Everything depends on the imagination to see things! Of course everything should be as clear to the viewer.