Alien man with a gun in his hand standing in front of a city

( many Xenomorph Invasion:1.45),(science fiction:1.2) city,Aerial view,Concept art,sky,xenomorph warrior, character, wet plate collodion, sharp, high detail, Mathew Brady, portrait, in the style of stefan gesell and emil melmoth and hr giger and klimt,Science Fiction World Magazine cover style,concept design,octane rendering,science fiction punk,(Symbol,voice,death,war,reason,decline,understanding,answer),(The Garden of Eden and Paradise Lost:1.15),The all-out war between the alien world and aliens,all kinds of high-tech weapons,art by Arthur Charles Clarke,Robert Anson Heinlein,Isaac Asimov,