The Difficult Canvas

I was thinking about how every time I knew exactly what I wanted on my canvas, the painting turned into a complete disaster. No matter how much I try to plan out my piece, the minute my brush hits the canvas, it does its own thing and I can't really control much. Trying to make the piece work with the interior is extremely difficult. In this new project, I'm working on transforming one corner of the room and bringing in elements of moody eclectic in. After trying several swatches of color from Benjamin Moore, we have settled on the Teal as we feel its the perfect blend between the green and blue tones that we're looking for and is pretty dark but still has a lot of depth at the same time. Here is what the swatch looks like.

With the walls in this rich color, I'm thinking of making a huge 6x6 ft painting with some serious yellow. I was so sure about how I wanted the painting to be but it has been 3 days, and I'm barely making any progress on the piece. Take a look at where I stand today