the best kitbashes are the ones no longer recognisable as such
as example my alternate eendracht, which started as a kitbash of alex's drawing but ended up an total redraw of basically everything.
anyways, try to look a bit at displacements. if you have a base design, estimate it's displacement and try to keep it the same. if you add, remove or move things, try to keep the center of gravity the same position (or move the center of bouyancy a bit by modding the shape of the hull) and the displacement the same, and you almost certainly get an working ship.
the forward arnament might be quite sensible, and if she has a lot more beam even the secondary battery could make sense. it all depends on how different this ship actually is from my eendracht concept, actually
you have the engine rooms still aft of the boiler rooms, right? so basically you just had a double ended ship and removed the aft guns and replaced them with the hangar?
as for legobucket comments, the worst kitbashes are the ones which take from 10 different drawings and where you can see exactly where each parts starts or ends. yours are far above that level IMO
so you are by no means the worst offender.
I would really be interested in seeing alex's references though, I am interested in the 2 very big funnels (inefficient boilers?) and 4 propellers on a ship only 10 meters longer then the eendracht. a displacement figure or a beam would give me the ability to really compare things already, but I believe he is mad at me for some reason :S