Most times after Sirius woke up, he had an idea of something to sketch. Sirius had an entire shelf of sketch books filled with everything from horror scenes to cups of tea. These visions were not his own and after a while James suggested that they might be a soulmate type connection.
If it was, the connection had not brought anyone to him yet. It was never a face of the person he got these visions from. There were others. Women and men that were sketched down, but any reflective surface was too small for Sirius to get details on a face. That detail was in what reality caused Sirius to create his 'Reflective' exhibit. There were many nights and days Sirius sought to try to find himself in the mirror after he ran from home. Mrs. Potter had to replace many of the shattered pieces and clean Sirius' hands after he couldn't seem to find what he was looking for.
After a while, Mrs. Potter asked Sirius to sit a bit further from the mirror with an easel and paint what he saw. Some portraits would be wildly different from what he in reality looked like, some were almost a carbon copy. Eventually, Sirius learned the lesson his adoptive mother had wanted to teach him. Sirius could create the person he wanted to be and control his surroundings. Not just on a page, but in reality.
Sirius had studied art and business during his university time. When his uncle left him a large sum of money, James had suggested investing it in a business idea. Sirius had spent countless nights with James coming up with ideas for something that they could do together. No ideas of a business came to them. Sirius ended up investing a chunk of the money in a fellow classmate's business idea. James and Sirius used their knowledge to help guide where the business should go. When the return on investment came, James suggested that this might be fun for them to do. Invest in other people's dreams, make them a reality, help them along, and then move to the next person.
Sirius loved the idea and after five years, they had a successful 'business'. James had taken over most of the operation when Sirius hit a big break on his art. Someone had wanted to set up a national gallery for him. Reluctantly, Sirius spent less time at their business and more time at his penthouse. Painting what ever came to his mind.
Sirius was truly happy with the day to day he lived. Living with his brother in a city he loved, painting, and helping people make their reality what they wanted. Sirius had it pretty good.
This day though, Sirius had no idea what to sketch. His mind wasn't filled with colors and lines that created a scene clearly. In fact, that part of him seemed to be locked. As he searched harder, Sirius realized it wasn't locked, it was gone. There was no place with dreams and thoughts that weren't his own.
At this realization, Sirius punched the floor length mirror that hung on the back of his door. With himself shattered, he walked through the glass and started the coffee machine. Waiting for James to wake up. James would know what to do.