I actually preferred the one in the lower left corner at first, because I'm interested in the interaction between the two characters â they make each other interesting, if that makes any sense? However, like the others have mentioned, the thumbnails will be smaller than this, and it's already difficult to make out the details in the one on the lower left. The last one (to the lower right) has more action and movement to it and probably gives a better idea about what kind of comic this is â and it will read better at a reduced size. So all in all I'd say you should go for the last one 