I had a hard time picking background paper for this card. I had cut the bird when I cut the owl but I couldn't find the perfect paper to go with it. I settled for this paper and I like that it looks like little guitars.
I've found that 3.5" is the perfect size to cut these at. Any bigger would be too big for the card. You could make it smaller if you had other elements you wanted to add though.
Getting Cricky - I'll sing you a song
Campin Critters 3.5"
Marcella Clove (Target - I actually found this stack at the Goodwill!)
Pink by Design 'Woodland Critters'