It looks a well beaten up and weathered model. For a first after five years, its really impressive. I really like the numbering on the turret. Although I dont know much about modern russian armor, this stand out as as strange. Would the turret numbers be painted on so roughly in a modern tank? The grip rails on the turret ... have you made these from wire? They look huge. Looking down on the tracks on the second foto, the tracks look very clean, compared to dusting on the rest of the vehicle.
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A little variation on the dirt will help, but the running gear and tracks look really good. Are these the kit tracks? The sag looks excellent.
Sorry i cant be of more help, but all I can say is, overall i think you have an impressive come back. Welcome to armorama as well! Hope to see more!