First up are a couple of small ships, the equivalents to the corvettes from before. These are Warhammer 40k Tyranid weapons converted into ships.
This is a cruiser-sized bioship, roughly based on the Battlefleet Gothic Tyranid Razorfiend cruiser, but made from plastic bits.
Here's a size comparison between the cruiser and the Orion frigate from past posts. The Squadron Strike game will be fairly small, with three ships per side. The humans will have the Orion and the two corvettes, and the aliens will have the cruiser and the two smaller ships from above.