I could see that being a ship from a race with pure 'ganic tech, but, either by choice or chronolgy, hasn't integrated it to the point where it replaces their older mecha-tech.
I think the main body of the ship would be organic, perhaps with some kind of chitonous hull and the only obvious tech is the crew area/command in the structure that looks like a tower. It should have a different texture than the rest of the ship. The main part of the ship should look very insectoid in it's texturing, but that one part should be quite obviously metal, possibly with just the hint that it's attached to the rest of the "organism".