Weathering a JSU-122

The JS/JSU series which has been available for years, is still today an excellent base to work. Over the JS-2 chassis, Dragon made several Self Propelled Guns different in tiny but visible enough details to justify that any ruskie-nut wants to build all of them. (JSU-122 early, JSU-122S, JSU-152, JSU-122/152)
There are not hidden woes with regard to its construction, and although you’ll see later, I had to detail certain areas; it was not a difficult task and could easily be resolved.
The only correction that is often done, but, unnecessary in my opinion, is the height of the fenders. In point of fact, if you build any kit of the JS/JSU series out of the box, you’ll find there is a narrow space between the tracks and the fenders. To solve this, you should place a 1mm strip around the hull’s contour, prior to joining both the upper and lower hulls. But this would turn the rear area of the vehicle distorted. So, I decided not to do so, anyway, this improvement would not be very noticeable.
This note aims at showing the corrections made from scratch, as well as pointing out the necessary modifications to include the Eduard's improvement set to the kit.
Also, I focused on the painting aspects to get a weathered effect.