I'm feeling very much like David Tennant in End of Time part 2. He looked straight into the camera and said "I don't want to go." One can feel the raw emotion in that scene. That David actually didn't want to stop being the Doctor. Yet he had to.
It hit me. I don't want to sell it. Its mine. However I have to sell it to grow. It has to belong to the real owner. It was mine as long as it could be. It has to move on. It has to be theirs. I can't stop here. I have to grow. I must sell this to accept the world of commission work and learn more about myself. No doubt I'm not the first nor the last commission 40k painter to feel this way.
I will miss this model. Someone will buy it and it will be theirs.