the difference was going to be that the image content would completely wrap around the content for the post itself (as an illustration of the post, say for example if I knit some socks, I’d draw something to do with the socks).
however, I’ve come upon a major wrinkle anyway, and that’s that I won’t have any idea how large the wrap around would have to be unless I somehow measured how many pixels the post was, and then drew the illustration accordingly, or made the image first and then my content would have to fit within the image wrap without going over. hmmmm.