What are the domes / spikes on top for? A "bridge" of sorts? Some of them seem to have engines, but they look out of place with the rest of the design. Most of them seem to be jagged and spiky on the bottom, but flat on top, aside from the bridge. Perhaps a more rugged slope upwards on the top, capped by one of those domes might look nice, or perhaps the entire top half could be a dome, either with the profiles you have now, or with a rounder profile.
I'n not sure if the spiky aspect suits their biology that well, since they're really quite big, and most of those spikes would be places that they couldn't get into. On the other hand, you could take the approach that most ships, especially below a certain size, would only have one Egassem, who might occupy the dome on top of the ship, in which case the rest of the ship can be designed according to the personality of the species. Larger ships might have more of these domes, to house more crewmen, and small ships might have none, and only be controlled remotely, or they might just have smaller ones, piloted by younger, less powerful (in a political sense) Egassem.
Warning: Antarans in dimensional portal are closer than they appear.