Just paint, some of the best art looks like a jumbled mess to those who do not understand art. It is the motion of the action that is art. Don't worry what it looks like if it gives you pleasure. It is like writing and can have the same effect but with painting you can do a layer full of hate and anger and cover it with something magical and loving and have it all together.

I'd be happy if the house was more than 1/3 of the way done. Sadly it is not.

I like mural painting a wall with the airbrush or doing a custom paint job on a bike, like here. Solid one color walls are a bore.