They are hanging above his crib. They were painted to go with his Jungle 123 bedding.
The K canvas: painted blue and textured, green paint for the K, brown buttons on the ends, and giraffe print ribbon along the edges
The R canvas: red-orange painted background with a darker shade for the wooden circles, brown and cream plaid ribbon cut jaggedly to form the R, handpainted wooden 'leaves' covered in green felt are scattered along the edges
The U canvas: a brown/tan paint for the canvas, a blue painted U, light yellow satin ribbons going vertically, and hand painted 1, 2, 3's along the edges (in blue, green, and red)
The Z canvas: a green 'brushed' painted background with a 'brushed' Z, two orange painted wooden circles on the ends, and brown/blue/tan dotted ribbon along the sides
This canvas was created to hang above his dresser. Painted green canvas to match nursery. Lightly brushed mountains in the background. Hand painted red letters "Let him sleep, for when he wakes, he will move mountains." Initials created with thin blue satin ribbon. Small red painted dots line the edges of this canvas.
Variations of this canvas could be easily created. Any colors, any quotes, any background, any size...