Guide from https://www.youtube.com/watch?v=jHQPvTbj7Zs&t=352s
Base coat with Chaos Black
Paint armour in Runelord Brass and shade with watered down Cryptek Armourshade Gloss . Paint the recesses and rivets with Wyldwood . Highlight raised areas with Runelord Brass and Canoptek Alloy for brightest highlights.
Base coat the boiler with Screaming Bell . Shade with Cryptek Armourshade Gloss and then clean up again with Screaming Bell . No highlight at this point as we will do all the metallic highlights together.
Silver details (Axe head, plaque, cups)
Base coat with Iron Hands Steel . For the axe head and the plaque on the top of the barrel shade with Gryph-charger Grey . For everything else shade with Nuln Oil .
Base coat with Retributor Armour and shade with Guilliman Flesh . For the deep recesses use Cryptek Armourshade Gloss . Then highlight all the gold with Stormhost Silver .
Base coat wood with Mournfang Brown and then shade with Nuln Oil . after shading use more Mournfang Brown to draw on wood grain. Then use Karak Stone to highlight and add more wood grain.
Base coat with Barak-Nar Burgundy . Shade with Nuln Oil . Highlight with Screamer Pink and then further highlight with Pink Horror .
Base coat with Rakarth Flesh . Make sue to miss the gold bracelets. Shade with Aggaros Dunes diluted with Contrast Medium all over the gloves. The use Nuln Oil in the deeper recesses. Now use Rakarth Flesh on raised details. The use Pallid Wych Flesh to highlight the details.
Black details (Barrel banding and axe handle)
Base coat with Abaddon Black . Highlight with Dark Reaper . Highlight again with Thunderhawk Blue . On the axe handle use dots of Fenrisian Grey for extra highlights.
Ale - port hole
Base coat with Abaddon Black . then cover with XV-88 . Highlight with Averland Sunset and then shade with Aggaros Dunes diluted with Contrast Medium .
Foam - port hole and beer
Base coat with Rakarth Flesh . Highlight with Corax White and further highlight with White Scar . Also use White Scar around the port hole to give the impression it's glass
Gauges and dials
Base coat with Corax White . Colour in levels with Mephiston Red . Shade with Nuln Oil .
Base coat with Bugman's Glow . Highlight with Cadian Fleshtone . Shade with Guilliman Flesh diluted with Contrast Medium . Highlight with Kislev Flesh . Highlight red parts of face with Volupus Pink diluted with Contrast Medium .
Base coat with Abaddon Black . Highlight with Dawnstone and shade with Nuln Oil diluted 50/50 with water.
Base coat with Corax White and then use Abaddon Black for pupil.
Cover with Astrogranite . Shade with Wyldwood . Dry Brush with Dawnstone and then dry brush again with Karak Stone . Then pain the rim in Steel Legion Drab .