I have been searching for this image for a while and I believe I saw it hear but due to a mixture of the post title seeming to not have any keywords I can easily find with Reddit's or Google's search tools as well as my own memory being crap, I have been unable to find it.

The art itself I vaguely remember to be a Human in more medieval style armor I think, collapsed on a cliff edge overlooking an ominous Necron structure in the distance. The author/OP had attached a short backstory to the artwork in the comments section, I believe it had something to do with the Human in the image having been sent to the area by their people for a reason I cannot currently remember.

Please help me find it, thank you.