Nice job! I love this kit and have had no troubles with any I have built. I would normally recommend sanding down that raised turret ring but you seem to have overcome that problem. I am currently converting one into a late Panther D with the later cast cupola.
This kit has been much maligned in the past, but many of those complaints were not correct. The rest of easi;y corrected. For example, one complaint is that the turret sits too high because of that ring. The obvious solution is to sand it down, resulting in a properly fitted turret. Another complaint centered on the number of lug nuts on the wheels as being late model not the early version in the kit. Great. Either replace the wheels OR do so research. The early Panther Ds replaced the early wheels with the later version, making the wheels in the kit accurate. Another issue was the barrel length being too short. However, my measurements are that the kit barrel is only 2mm short of scale, well within my acceptability. It looks right to me.
There are complaints that this kit is not scaled correctly, being too narrow and short, or too wide and high. Yet, when placed next to Tamiya, Dragon, Meng, and Takom Panthers, it really is scaled correctly. Still another complaint is that the turret sits too far back or too far forward. When compared with plans and photos of the real Panther, the turret is precisely where it should be.
The only issue I found concerns the vinyl tracks. They are stiff, difficult to sit right on the wheels, and border on being unusable. Like all other box tracks, I replace them with Friul Model metal tracks.
I love this kit! I have successfully built many of them and they fit right into my Panther collection. You are doing great on yours!
Bill Morrison