>>460819 (OP)I see at least five different aspects of this image that might be described as a "style" by someone new to the field-
> the subject matter that might be called "fantasy/ sword and sorcery ">the limited color palette that might be described as "monochromatic"> the composition of separate visual elements like the knight, skulls, swords etc. assembled together in a non- realistic manner which might be described as a "montage">the historical method used to create the original image which is likely an "etching", possibly a drypoint etching>the more modern video reproduction/ display method that adds the characteristic lines which in their original form were the result of "raster scanning"If you tell us which one(s) you are referring to someone can probably help you more...and let this be a lesson in graphic design- it's ultimately about communication and details so train yourself to think that way and to avoid briad/vague descriptions that leave people wondering what you are talking about, especially when discussing technicalities.