Firestone is a “Battle Cruiser”, documented in jackill’s Star Fleet Reference Manual, Ships of the fleet, Volume II. She’s the ship of class, of 30 ships.Two pics, the first, a bow shot, and the second a port side shot. This used two “Enterprise” kits. The secondary hull used both kit secondaries. The MegaPhasers were scratch built, as were the Nacelle pylons. 
Very nice! I love the dreadnought type ships.
Really nice job on the Cruiser. Good to see different classes.
Excellent work! More pics, please?
Yes please, more pictures! [#ditto]