I've never heard this song. I could easily see that this would be in Buffy's mind during the last of season eight and into season nine. Your graphic is perfect for the beginning of season nine. Each of them are just a little afraid to be the first to express something about their feelings.
I'm thinking about making wallpapers, but i'm not sure what's a good size for them? Could any one give me suggestions please? I would appreciate it! :)
Sizes can be different. Depends on what you like. You just have to experiment. For example you can try Width: 800 and Height: 400 and just see if you like it. If not and if it doesn't fit the picture just change it till you find the perfect one.