This FMA manga is interesting. So far there are a lot of similarities to US comics but they do some different stuff with the "gutter" space between panels (like I like how they did the gutters on
this page, which is more reminsicent of old US black&white magazine style comics than color comics) and also the style of the balloons is a bit different, kind of ovalish rather than round. The panel-within-a-panel on
this page is something I don't think I've seen too often if ever.
I think the balloons are different because that accomodates the various characters better.
Oh, yeah, and if you read too much manga, your eyes go funny and you'll start reading every comic right-to-left.