Paint Master

A High Elf sits in a tavern, calmly painting with a color changing brush. Suddenly, a man barges in and demands that they come with them. The Elf picks up the paintbrush and the painting, and turns to the man. The elf whispers to the painting and the character in it animates and in the next minute, the man is dead, and the elf is on the run.

A Half-elf amuses the children at the orphanage by painting in mid-air, and creating magical effect from the paintings. The kids are shocked by the kaleidoscope of colors coming from the brush. He smiles as his apprentice attempts to copy his technique, only to make a wonderful mess.

The art of the Ink Master is a wonderful thing to watch. They paint in midair, using brushes the size of a normal brush, or the size of a quarterstaff. The brushes seem to never run out of ink, and the ink changes color with barely a thought. They paint on air as easily they do paper, and their creations sometimes come to life.

Arcane-Painter's skill

You gain proficiency in painter's supplies, and your proficiency bonus is doubled when you use the supplies. You have advantage on any religion, history, or investigation skill checks related to paintings or painting. You also have a magical brush at your disposal. It counts as your spell casting focus, and it counts as painter's supplies. It can be any size you want, and can be a weapon at your DM choice. You can paint on any surface, including air, and it produces paint of any color, that you change without using an action or bonus action. The paint can be multicolored, and can be any texture. You can cause characters you paint to come to life and move around on the page, it is as detailed as you make it look, and it is practically an illusion. This can also thematically change your spells, you could paint an X for Disintegrate, or paint wind around you for Fly.

Paintling Guard

At 3rd level, your experiment with magic painting has giving you a magical guardian made of paint, your Paintling Guard. It can take any form, but it is a medium to small creature that responds to you commands. It is friendly to you and your party members. It can be whatever color and shape you want.

In combat, the Paintling Guard shares your initiative count, but it takes its turn immediately after yours. The only action it takes on its turn is the Dodge action, unless you take a bonus action on your turn to command it to take one of the actions in its stat block or to take the Dash, Disengage, Help, or Hide action.

It is a medium or small, your choice, construct. Its alignment is the same as its creator. It has an AC of 13, and HP equal to its constitution modifier plus its creators Cha modifier plus five times your level in the bard class. Ex: 2(CON)+3(CHA)+15(3 times 5). It has can has a 0ft move speed and a 40ft fly speed, but it cannot be ridden, it can hover. It has a 10(0) Str, a 14(+2) Dex, 14(+2) Con, 10(0) Int, 13(+1) Wis, and a 15(+2) Cha. It has a +2 proficiency bonus, and it has proficiency in Dex, Cha, and Con saves. It has proficiency in Performance as well, giving it a plus 4 to performance checks. It is immune to Acid damage, and the Charmed, Frightened, Prone, Grappled, and restrained conditions. It has a passive perception of 11, and darkvision to a range of 60ft. It understands all your languages but cannot speak. It has no challenge rating. It has the following ability: Imaginary Bond: The following numbers increase by 1 when your proficiency bonus increases by 1: the spirit’s skill and saving throw bonuses above, the bonuses to hit and damage of its Paint Splatter and Paint Claw

It has the following actions, which require your bonus action: 

Paint Splatter: Ranged Spell Attack, +4 to hit, range 30ft, one target you can see, 1d6+2 Acid Damage. The 2 is CHA

Paint Claw: Melee Spell Attack, +2 to hit, range 5ft, hit: 1d10+Str Acid damage, Miss: Every creature within a 5ft radius must make a dex save or take 1d6 acid damage, or half on a success. 

If you Paintling Guard drops to zero hit points, it dies. You can revive it over the course of a long rest.

Magic of the Brush

At 6th level, you research into the magic of painting has given your brush much power! Your spells that deal acid or poison damage have your Cha modifier added to them. You Brush also now gives you the power to replace yourself with your paintling guard. As a reaction to being targeted by a melee attack, you can swap places with your Paintling Guard, and your Paintling Guard takes the hit. You can do this times equal to your Cha modifier, min of once, and only if your Paintling Guard is alive.

Canvas of Reality.

At 14th level, your powers of magic painting have reached the level that you can alter the Canvas of Reality. You can call on your magic to repaint reality. As an action, you can roll a d20, and if the result is equal to or less than you bard level, you can tell the DM what you want to happen, and they will make it happen to an extent. If you succeed on the roll, you cannot use this for the next 7 days, if it does not succeed, you can use it after a long rest.