ok carl, i am a huge Btech Guru. might i recommend looking at some of the classic Btech stuff, and not the M$ mechwarrior game?
now for the advice, if you give it knees make them bend backward, like a madcat. Widen the waist a bit, so that it doesn't look so top heavy. Also open the doors on the streak srm 4's on either side of the cockpit. Once that is done, i can see this mech weighing in at 45 or 50 tons as a successor to my beloved ShadowCat.
Oh, and stay away from dark Age crap as well as M$ designs, or the way that they redesigned

of the mechs. The classic Btech versions look much better. They were the ones used in mech3. Also, to give it the appearance of size, lower the camera to a level about knee level, so that you are looking up at it.
I love the top half and the arms though, maybe just add a couple of medium laser ports between the CP and the SRM launchers. Heavy x-pulse in one hand, UAC 5 in the other.....put some jump jets on the back and we have a winner.