Here is my digital ink drawing of a Fallen At-At Walker from the Empire Strikes back.
Who remembers these guys ? They were awesome. Almost unstoppable.
AT-AT :
All Terrain Armored Transport, is a four-legged transport and combat vehicle used by the Imperial ground forces. Standing over 20 meters tall with blast-impervious armor plating, these massive constructs are used as much for psychological effect as they are for tactical advantage. Star Wars Databank
Appearances: The Empire Strikes Back, Star Wars: The Force Awakens, Return of the Jedi, Star Wars Rebels
Height: 74' (22.5 m)
Armament: Chin-mounted heavy laser cannons (2), Temple mounted light blasters (2)
Complement: 74-Z speeder bikes, DLT-20A blaster rifles, E-11 blaster rifles, LX-4 proton mines, 614-AvA speeder bike
Crew: Pilot (1), Gunner (1), Commander (1)
Roles: Self-propelled artillery, Troop transport, Military Walker, Mechanized infantry
Source: https://starwars.fandom.com/wiki/All_Terrain_Armored_Transport
These are my drawing process sketches.