Nicely done, especially on one of Dragon's early releases. I especially like the work you did in working on the seams, I know what a pain they can be on this kit.
However...(you knew this was coming, right?

)
1. I would paint the engine deck grills black and drybrush the main tank color to help represent the "hollow" look of the engine intake.
2. I would make all the smoke grenade launchers point about 30 degrees (either left or right) off center but all in a general line.
But I will not fault you at all, you really did a good job with a mediocre kit.