The composition of this photo is well done and the colors are vibrant, but there is room for things to be improved. The most noticeable thing is that there appears to be a considerable amount of noise and quality issues just from this small image size. I can see that either a large depth of field was used or a point-and-shoot camera with a really small sensor. Because the surface is so colorful and repetitive, I personally would have used a wider aperture so there would be a shallower depth of field and better bokeh. This would also cause the ISO to be lower and less diffraction to appear in the image so the quality is higher. The dynamic range seems to be low causing white clippings which means either too much contrast was added or it's the camera. Unfortunately, I cannot what type of camera was used.
For positives, yes, the idea is nice. I like how the clear bottle adds a subject to the photograph yet still emphasizes the colors and vibrance. The image is filled with various colors but doesn't rely on cliches like colored pencils. The use of spheres is well done and the bottle is framed well. The idea is rather unique or I've been missing out on photos like this one.