Well I've now seen some in "the flesh" and have to say the executive liveried one looks awful. Far too black and white.
The large logo one was in a cabinet close to a blue Dapol 22 and a Heljan 27. What a selection of shades! The blue on the large logo one does look purple and dark, the Heljan 27 ok, and the 22 a faded, less intense blue (which looks ok to me for a worn loco).
E6003 looks v good, but not 3x better than my Hornby one (bought for £40), and which I've recently fitted with oval buffers.