Love the front (you're really good at designing front-ends I think!) but in my opinion the back needs quite a lot of work. I think if you broke up all your white models, and took a few days looking at pictures of whatever it is you want to make, and another few days making it, you'd have something really special. At the moment all your models have some fantastic parts which I look at and think 'Wow! I wish I'd made mine look a bit more like that' , and other parts which are a bit messy. I know eventually you'll get one where all of it is fantastic, but this one isn't there just yet.