It's the Mantis Cruiser from the awesome game FTL: Faster Than Light by Subset Games. You should check it out, it’s great :)
The spaceship was modeled in Blender and textured in Substance Painter.
It can only be seen in 2D in game, so I imaged that it could look like this in 3D. Here's a link to a reference at the FTL-wikia: http://ftl.wikia.com/wiki/The_Mantis_Cruiser
It has been damaged by battles against pirates and the rebels and is overgrown by space molds.
You can find the whole project over here: https://www.artstation.com/artwork/a9ekk
Hope you like it :)