The 31-year-old has undertaken two major projects in association with the club, earning several thousands of pounds for charity.
'The Rooney v Man City' depicts Wayne Rooney's famous overhead kick in the Manchester derby in 2011 while 'Legends' features Denis Law, Denis Irwin and Peter Schmeichel and was painted 'live' during a dinner in London where the trio were guests of honour.
"Basically, I was doing some work for Gordon Taylor at the PFA and I’d done a painting of Manchester United called ‘United Forever’," explained Mosley to ManUtd.com. "I thought Gordon may know somebody at United and he phoned up David Gill and arranged a meeting for me. [Chief operating officer] Michael Bolingbroke and David met that same afternoon and they looked at the painting and were really good about it. They said the painting needed to be more specific to Manchester United as they felt it wasn’t quite recognisable as the club.
"So they invited me up to Manchester to watch the first home game of the season against Tottenham last season and said to come in and get a feel for the place and the atmosphere. I had to go away and work on a painting that did United justice.
"The painting I decided to do was based on the best moment – Wayne Rooney’s goal against Manchester City. The reason why I depicted it from so many different angles was due to the enormity of the goal. It was quite spectacular and I wanted the viewer to become engrossed by it.