Star Trek TNG Niagara Class redux & variants

Here's a few new and improved models of the Niagara class. A version that's all kitbash, a version that's got the more ovoid disk, a version with the round disk and scratch-built pylon parts, and ovoid disk and scratch-built parts, because I couldn't make up my mind and they're numbered in order of creation. I like the round disk a little better, but my purism says the ovoid one's fine, so you decide which one you like best.