CD Design Layout

I think the layout design is just average, but what striked my eye was the variations. I want to incorporate the same type of line work in Project 4. I like how the artist used the line work as more of a background than composition. I like the vibrant yellow-green contrasting with black illustration of the clock. The opacity bar, in my opinon, is a cop-out in design although I think for this layout it works well on the back of the cd.