Wall 1: Just a little magnetic message board :p
Wall 2: An Animal Crossing: City Folk poster, a My Little Pony: Friendship is Magic poster, and this purple wooden princess crown decoration thing that has my name carved into it
Wall 3: A cork board overflowing with Disney badges, and four trading card binder sheets with Pokemon cards and plushie hang tags in the slots
Wall 4: three Nightmare Before Christmas posters, an Adventure Time poster, two Hello Kitty posters, a Pokemon Soulsilver/Heartgold type advantage sheet thingy, a watercolour collage thing I did a few years ago, pink Christmas lights, and a bunch of clothes on hangers hanging on the pins that keep the posters in place
Wall 5: another My Little Pony: Friendship is Magic poster, a Pokemon Platinum Arceus poster, a Paramore RIOT! poster I made, three drawings I drew, my reservation card from when Pokemon Omega Ruby was released, and another Pokemon hang tag because I ran out of space on wall 3