A monthly "theme" for painting is a common idea, but ZeroTwentyThree had some cool suggestions.
It's a simple thing; no contest, no competition, no formal promises or anything. Each month, there is a theme people should paint to and post pictures of what they have painted in this thread. Each month, there will be a different theme - but the themes will be general, allowing almost anyone to participate.
Here are the first couple of months' themes;
Knowvember 2016: Models which rely on intellect or wisdom more than strength or toughness. So; wizards, psykers, priests, engineers, AdMech, etc.
Deadcember 2016: Undead, skeletal or death-themed models - classic undead, Tomb Kings, Legion of the Damned, Plague Marines, or Amethyst Wizards etc.
BLAM!uary 2017: Things that make it go boom! Big guns, tanks, cannons, artillery etc.
February is the shortest month: Small models (Epic, Warmaster or other 15mm or less, but also halflings, dwarfs, ratlings, squats, gnomes etc.)
On the March 2017 : Infantry models from a regular army - things that would march! Halberdiers, Swordsmen, Spears, Imperial Guard etc.
Hate-ril 2017: Models with hatred, animosity or other special rules, or that are oriented towards hatred of the different (Dark Elves, Orcs, Witch Hunters, Inquisitors etc.)
Mayfly 2016: things that fly - dragons, eagles, fliers, jump pack troops etc.
Dune 2017: Models with a desert or sand theme - anything with desert bases, but also AdMech, Araby, Tomb Kings etc.
Fourth of July 2017: Independence, rebellion, freedom! Historical models relating to revolutions, but also fantasy and sci-fi models of the same thing ('Stealer cults, uprisings, soldiers putting down rebellions).
August Personage: A king, duke or other noble leader.
SeptEMBER 2017: Something related to flames or heat - a dragon, a flame cannon, a Bright Wizard, witch hunters or other excitement.
Orctober 2017: Everything greenskin ... or related enough to it for government work!
Newvember 2017: A "new" model - for a new (to you, at least) game or army, or a recently-released model.
Deck-ember 2017: Avast behind, me hearties! All aboard and on deck for some kind of pirate, naval or otherwise ship-related model
I look forward to seeing what people come up with.