Scene is good, personally i like it, but there is a few things that will reduce number of sales. First thing is the price, as soon as someone who is regular customer here see, let's say a complex scene for 2, 3, 4, 5$ he/she instantly avoid that because there is a big possibility that model were stolen, and that person who is selling it isn't real author and that's the reason why it's cheap. Second there is no wireframe renders, you should provide those in the best way possible, best way mean clear wireframe renders so that customer can 100% see how scene/models are constructed (i know couple of people who gave up shopping because seller couldn't or wouldn't provide it), render out multiple of those if needed, i think that cgt should made this mandatory. Next, try rendering scene with different lighting, different layout wich will show, let's say, modular nature of the scene. The more purpose in which your scene can be used the better chances for sale. The last thing "Was wondering how much you would have priced it". No one besides you can tell you how your model should be priced, the only right thing to do when it comes to pricing is to appreciate your work, appreciate your own work and other will apreciate also.