Hi Danny. Finishing armor has beome a very personal thing, with some modellers preferring the realistic approach .... painting the model as the real 1/1 vehicle would be. Personally I find this a little boring, especially on these small scales.
A 1/35 scale model cannot cast shadows and catch light in the same way the real vehicle can, so I believe in using techniques to simulate this to give the details "depth" and add interest. If you look at an 1/1 scale vehicle, eventhough it is monotone in colour; the shadows, highlights and reflections add so much variations to the finish. This is lacking on your model.
You have some pretty large scratches and wear, but yet the model is clean. How did it get these scratches and wear if it hasnīt travelled and been involved in skirmishes?
Even good dirt effects can be enough to break up a monotone colour. Some stowage, figures or signs of life would also help.
Its your model so you decide what finish you like .... the opinions above are considering my personal taste. Its your choice.