Well IMO those grey/white stripe thingies that "encase" the side turrets don't go with the two brownish colours (which in turn makes the ship look old and dated for some reason or another). Your hybrid destroyer release definitely has the better colouring to me.
Or maybe I haven't seen the original Tanen in a long time and this is the first time I'm actually looking at "it" (not the exact same model, but you get the idea) up close. I understand that this stuff isn't all that easy though, so I can ignore rather than complain about the little details.
EDIT: Spelling mistakes fixed...??? Wasn't even 8am when I typed the original post, and here I am, lacking sleep.