It's better to see a selection of what each gallery has to offer. InterimArt has included Gillian Wearing, in a photo of her in a mask that resembles her own face, and art duo Muntean/Rosenblum, who paint lounging teenagers offering up profound and vacuous thoughts (pictured). This is the first room and it's a great opener. However, there's one glaring omission: The White Cube represents some of the biggest players around and it's nowhere in sight. You can always take a trip to Hoxton yourself, of course, and, unlike the RA, commercial galleries are free.