As said,the front end is very good looking. To keep the lines of the car flowing,I think the back window should have the wider part on the bottom or just a rectangle.After all it is your project.
It's unfortunate you couldn't have got your ticket sooner. NNL East is the biggest show/vendor area.The show was 5 weeks ago.But there is still hope.Next years show on April 16,2016 will be the 30th anniversary. If you can hold out that long.