Ok, corrected the colours, and does look better to my eyes.
I just can't get the bar and pin lined up though, not matter how much I fiddle:
EDIT: GOT IT!!
All had to do was move it back slightly on the bar, and it then allowed it to centralise.
The physical model itself actually doesn't work so good with the pin that way around - it is loose on the bar.
Turn it around, and the tighter end of the pin grabs the end of the bar and stays in place.
Original post now modified with updated version.