Here is the full list of all 48 Pixel Artist achievements.
Painted Pixel Exploration
Painted Blessed Mage
Painted Rustic Village
Painted All Souls Night
Painted Haunted Cemetery
Painted Moon Carriage
Painted Overgrown
Painted On The Hunt
Painted Night Air
Painted Almost Lucky
Painted Space Elevator
Painted Crafty Witch
Painted Hidden Bridge
Painted Stay A While And Listen
Painted May I Have This Dance
Painted Classic Living Room
Painted Abandoned Hardware
Painted Dwarf Shop – Meeting
Painted Downtown
Painted Medieval Home
Painted Sweet Petals
Painted Pixel City Industrial
Painted Apocalypse Begins
Painted Retro Nostalgia
Painted Green Thumb
Painted The Office
Painted Mannequin Impostor
Painted Dungeon In A Dungeon
Painted Pink and Fluffy
Painted Guns For Sale
Painted Self Destruct
Painted Beauty Potion
Painted Alien Invader
Painted Holy Paladin
Painted Pixel City Residential
Painted Lonely Science
Painted Frankenstein’s Experiment
Painted Tarot Reading
Painted Sacred Dagger
Painted Good Day To Farm
Painted Crumbling Dungeon
Painted Forest Friends
Painted Squirrel Management
Painted Campfire
Painted Kid’s Room
Painted Laboratory Take-Down
Painted Surrounded
Painted Galaxy Magic