Hey, this is something I'm new at. I'm into my third week of hard surface which teaches me how to model in 3D max. Here's my tank I'm currently working on. I'm gonna add much more detail in the days to come. so let me now what you think.
It's coming along very well. The only issues I see are pretty minor.
For the main gun turret, it looks like you need to set up some smoothing groups to make it look more rounded. It has a much lower poly count than the other round elements, so you might consider redoing it with higher resolution cylinders.
The barrel sizes of the lower left gun look a bit small. Even if it's for small caliber rounds, I think they should still be larger.
Over all it's an interesting design. Please post more progress pics so we can see how this turns out.
As mentioned before there are some smoothing issues on the gun and on the inside of the wheels but these could be fixed easily enough - if it is meant to have a polygonal barrel then it might be worth defining that somehow as it currently looks like a modelling issue.
The gun-barrel fix looks better. To help the believability of the model you might want to add so small details (although as this is a WIP I am guessing you've planned that as your final stage). Some hatches and bolts could help the look of the piece. Some detail within the cab will really help bring it to life.
Some of the edges on the main body look a little sharp, a 5mm or so chaffer will just take the edge off them.
Look forward to seeing more.
The modelling looks like a good job but as you say it could do with some more work to get it 'finished'. The basic form looks good and clean and apart from some issues with smoothing on the curves (which can be a pain if you’re trying to keep the polycount down) there aren't any really problems there.
I think the biggest problem would be the detailing or more correctly the division of the details. With a project like this (and especially if the reference is a little detail light) is can be helpful to plan ahead you details and considered where and when you want to put them in.
With your model the front the guns are well detailed but the body of the turret and the roof and rear of the hull are quite bare. If your working to a deadline it can be worth getting done some basic detail all over the model then going back over and increasing the detail – that way if the deadline comes up then at least all of the model has something going on with it. Getting the sequence of what to do and when is where the planning can come in handy. To get a good detail coverage quickly, basic parts that can be copied and pasted can quickly build up and overall foundation (like with you handles and bolts) and once you’ve gotten a few projects done you can start to build up a library.
Couple of little thing that stood out to me:
The front rim of the main gun barrel could really do with a bit of chamfer at either end.
The hull mounted gattling gun looks a little ‘wrong’ I think it is because the barrel support is too far aft and a bit too thick.
Hopefully you’ll have chance to either finish this off or get some more work done soon.