Hi Stuart: Thanks for taking time to post your build/review on Armorama. Armor kits definitely have their own unique draw to them. May I point out a few functional items one should consider when depicting armor?
1) Chains: often seen on models -- rarely seen on real tanks (only French early war tanks, mostly). They were useless for hauling large AFVs and if carried, would be in bags -- too easily to entangle -- get caught in the suspension! On your gun tube, it would be impractical if the crew ever needed to bring the gun to bear on a target.
2) red/white aiming stake. These were used for artillery with indirect fire tasks. Think M12 155mm Gun motor carriage, M40 155mm gun motor carriage or M8 75mm howitzer motor carriage. The M36 was valued for its direct fire capability.
3) I think you glued the hatches on upside down. Look here for three pages of images of the real thing and the tech manual
http://www.ferreamole.it/contributi/marco_g/m36_01.htmHit "successiva" at the bottom of that page for the following pp.
4) lastly, make sure that all twelve of your roadwheels are firmly horizontal. Your front and rearmost wheels seem to be lifted up by the tension of the vinyl tracks. In reality, the weight of the tank would keep them firmly level.
HTH, Roy