Well, I've never done a canvas before, so this is a sad first attempt. I have Laura Ashley curtains in my craft room. Quite a while ago I received a magazine sub free gift of some LA stamps and various other matching bits. So I decided to use some of these on the canvas.
I covered the canvas with various shades of acrylic paints (using an old credit card to spread it - saw this tip somewhere on the net). Then I used a reddish pink acrylic paint brushed on a LA stamp quite a few times over the canvas. I then sprinkled hologram embossing powder and heated, which is why it's difficult to get pictures (especially at night, but the deadline for the challenge is today). In these pictures you can't really see many of the stamped images, but I can assure you that they do show up more irl, depending on the angle of light reflection. It really does look less patchy than in the photos.