Ork genestealer art from the 1991 Freebooterz supplement ( lemmy.world )
Article on genestealer orks. Apologies that I couldn't confirm which of the official GW artists drew this up.
Necron concept art by John Blanche ( lemmy.world )
Knight of the Realm by Alex Boyd ( lemmy.world )
https://warhammerart.com/shop/the-old-world/forces-of-fantasy/knight-of-the-realm/
City Of The Damned concept art by David Gallagher ( lemmy.world )
‘The Chaos Legion Attacks’ by Michal Sztuka ( lemmy.world )
Ardamon Iceheart (credit: ORNIRIS TERENSI) ( cdnb.artstation.com )
Artist's Portfolio: https://www.artstation.com/orniris