Some great blues again, with those energy bolts. Overall I'd say this isn't as successful as the other recent SF piece... mostly because the ships are lost in the dark. The lighting doesn't seem to match what we see on the planetoid...and it doesn't help pick out/define the vehicles.
I don't blame you for going back to this model. I think Bazze's design, here , is really inspired.
Thanks. The blue lights are beams fired by ion cannons, usually employed to disable enemy ships. About the grill.. not totally sure, but I think that this kind of vehicle is able to operate in space and into a planet's atmosphere. So it could even be a radiator of some kind..