I really like the paintjob and the weathering on this tank, great job. I would give it an 8,5 actually.
From the picture, it is really hard to judge the individual steps of the weathering. To me it seems that you did not use a filter wash/oil wash to accentuate rivots etc. Again, I might be wrong, but I think if you did that, the tank would even be more perfect!
Stay hoopy!