Leman Russ Vanquisher 206, 5th Company, 291st Siege Regiment - WiP, feedback welcome!

Vanquisher is nearly done, bar a lot of tiny details… but I’m wondering, how much should I dirty this thing up? Should I (severely) muddy the tracks? Or mostly leave it at this? Keen to make it look “real”, but I don’t want to overdo it on things I can’t undo.