Not realy a DIO but ...
Third model, second base. I used real Flak shell to illustrate the feeling and scale of the model.

I think it´s great for one of your first models. Way better then mine. Only one tip. A fault that I made many times: When you apply mud, make all the places muddy or some open places at the flat areas. The parts that are standing up will have on the edges more mud then the rest and that are the places you missed. I allways weather the hull and then put the wheels on so you can reach all the areas much easier

lars