Btw, when considering this. keep in mind its not strictly Sci fi. For istance theres no Alcubierre drive and loosely technical speculation. It runs on crystals :) . The engine room pointed out in the refrerence image ive provided is literally just a pedestal on which the crystal sits.
quick 20 min sketching some other weapon set ideas to have a bank to start from before fleshing out every weapon type. Crystals & gold are credited towards a TL2 mod community member who said they like crystals and gold :)
Great improvment! Pretty much everything that Chris said! You should play around with the shader for the crystal and you could place a small light underneath it to fake caustics. Maybe leave traces of mined crystals in the wall, just some glimmering. Keep it up1 :)