S.H.I.E.L.D. has many agents with different skills. But there is only one agent with the skills of an artist. A painter. She can replicate any painting to look very very similar. Coulson tells his team about this agent who will help them steal the White Swan painting a very famous and one of the oldest painting in the world. So even before she arrives at the teams Bus, she has already started on the replica painting. No one knows art history better than her.