I've totally been in your shoes before, searching for that perfect wallpaper to jazz up my space. I can vouch for California Wallpaper; they have some amazing stuff! I actually used one of their animal wallpaper peel and stick for my home office, and it turned out fantastic! The designs are so unique and artsy, just what you're looking for. What I did was take measurements of my walls and browsed through their website to find a design that complemented my room's color scheme and furniture.