The Last of Them - Abandoned Factory

Hello everyone,
I hope this finds you well and safe.
Here is a concept in my series of visual developments called "The Last of Them" started in 2013, set in a post-apocalyptic world that tells the stories of the wars between a race of aliens and the Earth United Nations. Earth has become a peaceful planet under the E.U.N. until the alien invasion.
The war between the E.U.N. and the aliens has brought humanity to the brink of extinction. However, we will never stop fighting until the last of them dies.
In this concept, the E.U.N. military forces took over an abandoned factory that got attacked by a group of alien mutants.
Thanks for viewing. Stay tuned for more concepts.
Cheers!
_Ken