ACEO size of 3.5″x2.5″. Delicately hand painted miniature watercolour. This size of painting look great in all those little nooks and crannies in your home like on the mantelpiece or windowsill. It is also a great size for adding ideas to a sketch book. ACEO stands for ‘Art, Cards, Editions and Originals’. Watercolour and pen iris painting by Sophie Appleton.