Off to a great start, you've done a fantastic job with the battle damage and streaking/weathering.
The Heng Long T-34's a pretty damn good runner straight out of the box, and it looks the part too. The only problem it has is that the road wheels sit too low; ideally, the tops of the idler, road wheels and sprockets should be in a more or less straight line.
You just need some small spacers to sit at the bottom of the suspension arm slots to limit their travel by a few millimetres or so. Herman used brass tube in his (you can see it
here), but anything will do. It's an easy fix and really emphasises the T-34 that low, mean silhouette.