Uh, a reskin is about one step lower than a kitbash from a modellers pov. It does not mean it looks bad, but it certainly is pretty lazy indeed.
to sum up the ships in one word: boring
but not boring cause the models are bad. after all 2 of them are vanilla and one of them is an established custom ship - but boring because they bring nothing new at all. it would be similarly easy but more effective to kitbash something new if you do not want to make really new ones.
either way, they fit the mod better than the current ones. so i would consider them to be "placeholders" rather than final products. (and be good with it for the time being)