This looks really great... and so does the original design you did. Have you seen the 'Ghost' from the new series Star Wars: Rebels? They based its look from an original Ralph Mcquarrie design for the Falcon... it looks really similar to this ship so you've clearly done an awesome job!
This looks totally awesome. Given its size and layout, it would fit in-universe perfectly as a spinoff/reboot of the YT series freighters, given that the YTs are stated to be very old and no longer in production.