This piece is dimensional but does not have a layer of glass over the image. It measures approx. 15 1/2" x 28". There is an area of clear textured glass between the inside edge of the frame and the image area. Light does not pass through this piece. Because the surface is somewhat shimmery it reflects the flash from the camera which makes it difficult to see the detail in this piece. I have included the detail photo to help with that.