"The Demon" Gene Simmons of KISS by Steve Rude
r/ImpracticalArmour collects, appreciates, and respectfully critiques art and cosplay featuring any form of costume which resembles armour but just looks unapologetically stylish."The Demon" Gene Simmons of KISS by Steve Rude

Artwork portraying painters, writers, dancers, musicians, and creative artists in any other medium.
Jusant concept 3 by Andrey Surnov

For art of farms, farming, terraforming, hydroponics, cattle, etc.
Jusant concept 3 by Andrey Surnov

Paintings and drawings featuring exteriors of homes and all sorts of dwelling spaces. (Interiors should instead be posted to /r/ImaginaryInteriors)
Tower Siege by Oscar Berman
To share the several kinds of destruction arts. Explosions, nature, mystical powers, demise, fires, flooding...Jusant concept by Andrey Surnov

Artwork of towers, steeples and spires that reach for the sky [](/imtrackinglink)
Sacred Peaks By JeromeComentale

Paintings and drawings of Fog, smog, haze or mist landscapes and the characters, tech and monsters found within.
Traces of the past by Jerome Comentale

Artwork of crashed, rusted, burnt, ruined, dereclict or abandoned vehicles
Throne of the demon thief By Jerome Comentale

Imaginary Hyrule - Official art and fan art of the Zelda games.
"Into the Garbage Chute, Fly Boy!" by Jock

Paintings and drawings set in the Star Wars Universe.
Cyberpunk City book cover02 by Ignacio Bazan-Lazcano
Images of beings on bikes! Bikes do not have to be wheeled. No AI art!A Hole in Space cover art by Anthony Roberts

Terran Trade Authority is a science-fiction setting written by Stewart Cowley presented in a collection of four large illustrated science fiction books published between 1978 and 1980; Spacecraft 2000 to 2100 AD, Spacewreck Ghostships and Derelicts of Space, Great Space Battles, and Starliners Commerical spacetravel in 2200 AD.
Total Eclipse cover art by Eddie Jones
Paintings and drawings featuring spaceships, rockets, space stations, and all other spacefaring vehicles.Article from Science Fiction Monthly, January 1976
Discussion and comments about the two seasons of Space:1999 starring Martin Landau and Barbara Bain. A lot of terrific model work was accomplished by the Gerry Anderson team for the show. Apparently a reboot is underway (Space:2099?).DeathAndTheMaiden: RCrumb edition by Zug Art

Art that showcases aspects of people's afterlives in realistic or fantastical settings -- Often seeking to glorify the mundane (though not limited to), "slice of afterlife" art depict day-to-day rhythms or afterlife experiences in ways that are romantic, wholesome, and/or thought-provoking.