Two Cardassian Cruisers, the smaller one is from the 3 Piece DS9 Kit. (I haven't finished the two other ships yet.) The larger ship is the vintage AMT/ERTL Cardassian from the 1990's; you can see the 3 Piece Cardassian scales up well.

Close-up on Cardassian from "3 Piece DS9 Kit." This kit is surprisingly well detailed. (I haven't finished the other two ships in this kit yet.)