Can't tell from the description which are inner facing (glass stickers) and which are out facing. Also which have background colour which don't. A much better description would sell you loads more I think.
I quite fancy a little one but got a bit bored of trying to get what a wanted - something subtle, either for the inside of a window (as above) or magnetic so removable.
the 2" 3.5" 8" and 22" smileys are individual peices of vinyl, there isnt a background with those.
They are all exterior applied, but could be applied to glass on the inside, though doing that would reverse the smiley and the broken conrod would be on the opposite side
