The top panel was so I could practice a little bit on drawing from different angles. The bottom panel was because I simply wanted to draw Shinji with wet hair, and I guess Mari swishing her's back as well.
One of these days, I'd like to do a pic taking place after Mari drops all that weight and starts toning herself up, but since that won't be until some time later on in the fanfic, that makes it a bit tougher to come up with a specific scenario. Well, we'll see what happens.