I was talking about the step arrangement myself, but Centre of Gravity problems....
Hmmm, alright, here's a follow-up. If you were handed this technical drawing and told "Alright, you think this plane's wrong, then YOU re-do it!". .What would you change on it? Try to keep the asthetics if you can, but that's not too important....
Personally, maybe I'd put the step in, bring the fuselage back a little more, and make it a little taller for propwash. Or just forget the whole water thing, smooth out the boat shapes and reposition the gear, she'd give a c-123 a run for its money (but hey, what do I know? I'm no engineer....).
. .Isn't it great what you can dig up on the Internet?