This is part of a series on the rough ship drafts from the Mass Effect series. Al are untextured. Some of these ships appear in-game during cinematics, but are not used in the actual game as proper models.
All games in the Mass Effect series, and all ships and vehicles therein are © BioWare/EA.
You are free to use this reference however you wish. You can also download the full size version for a better quality image.
My full list of references can be found here