About the red ...
The bike is an '87, so that red should be Marakesh Red. The tank is faded big time. It also has a really beeeg dent on the right top side like somebody dropped a 2x4 on it. The tank may be replaced or repainted at some point. The leather's red is close but not an exact match* to the red whats under the seat.
*I doubt that there is any way to get an exact match. With different substrates and different pigments the colours will react differently under different lighting. BTW, I've 35 years in the print business and my company specialized in matching colour work, things like fine art reproductions, short run art gallery catalogs, Chromalin matches for magazine progressive proofs, etc. Twas good while it lasted, then digital came in.
I'm not normally a big fan of flash/bling, so #1 was a departure from my usual. 3 & 4 are too blah even for me.
What do you think of these somewhat toned down 2-colour versions?