Because there are no actual physical models being used for the ships in The Force Awakens, very high quality CG model assets were made for the film by Industrial Light and Magic. To help with reference, here are some ULTRA high res renders of ILM's assets. If you wish to download them to your computer, which I recommend, do the following.
Go to the following link...
http://imgur.com/a/lWptA
Hover over the upper right corner of each image, and you will see a gear icon appear.
Click the icon, and you will have two options. View Full Resolution or Download Full Resolution.
I recommend downloading them, and use them for reference when building your own models. Have fun!
Go to the following link...
http://imgur.com/a/lWptA
Hover over the upper right corner of each image, and you will see a gear icon appear.
Click the icon, and you will have two options. View Full Resolution or Download Full Resolution.
I recommend downloading them, and use them for reference when building your own models. Have fun!