At first, it’s hard to believe that the true story of Colonel Blood’s audacious attempt to steal The Crown Jewels from the Tower of London in 1671 has not provided the basis for a play before. After two hours of Simon Nye’s pedestrian telling of the tale as a comedy, you have your answer.

When Berthe Morisot organised the first Impressionist exhibition in 1874, along with Monet, Degas, Renoir and co, she’d already exhibited at the Paris Salon for a decade – since she was 23. That’s not bad for someone refused entry to art school because she was a woman!

When you stand in front of Helen Frankenthaler’s Freefall, 1993, in your mind you drop into its gorgeous, blue abyss. It is enveloping, vertiginous, endless and yet there’s none of the terror of falling into a void, only intense, velvety comfort as the bluest blue melts into emerald green.

Notable anniversaries provided the ballast for this year’s raft of exhibitions; none was dead weight, though, with shows dedicated to Rembrandt, Leonardo and

Among the numerous exhibitions marking the 350^th anniversary of Rembrandt’s death, this small show at the Dulwich Picture Gallery stands out.

Done well, a one-room exhibition can be the very best sort, a small selection of paintings allowing the focused exploration of a single topic without the diluting effect of multiple rooms and objects. In this respect, Artists in Amsterdam rather misses its mark, providing neither the detail nor the scholarly insight we have come to expect from the National Gallery’s Room One exhibitions.

Under a turbulent sky racked with jagged clouds suggesting bolts of lightning, pale figures hurl themselves into a spitting expanse of water. Swathed in white towels, other figures mingle with the pink bodies, seeming to process along the pier as if towards a baptism. Swimmers’ vigorous arms overtop their submerged heads; on land, no individual face is distinguished. As if exuberance could tip at any time into anarchy, a sense of threat pervades the depiction of communal leisure.

Born into an artistic Swedish-speaking household in Helsinki, Tove Jansson’s first, and most enduring, ambition was to be a painter. Although best known as the illustrator behind the creatures of Moominvalley, those plump white hippopotamus-like folk with an existential longing for adventure, Jansson came to regard her widely successful creations as a distraction from what she considered to be her “real work”.

This sparkling display of some four score watercolours from the first decade of the last century throw an unfamiliar light on the artistry of John Singer Sargent (1856-1925), the last great swagger portrait painter in the western tradition. None here is a portrait in the conventional sense: rather Sargent is, so to speak, off duty, painting for himself with a glorious spontaneity, a professional on holiday.

The Other Room, dating from the late 1930s, is the largest painting in Dulwich Picture Gallery's landmark retrospective, the first show to be dedicated to Vanessa Bell since a posthumous Arts Council show in 1964. In it, three women inhabit a space crowded with sofa and armchair, flowers and a vase, a comfortable interior and yet also oddly mysterious: their body language hints at complex relationships.