LOL, I debated with myself for at least 5 seconds on the choice to go with just two colors instead of the three like your scheme really calls for and you can see what won out.
Since these pictures were taken I have dressed it with pin stripe tape like you showed in your videos.
I used 1/4" black on the color intersections with a 1/8" black side stripe set 1/8" apart.
I almost left this step out but I am glad I added it, the pin stripes really makes it pop and it adds just a little touch of a third color.

Minnflyer I have a question about stretching the covering around curves.
I can do this and the covering conforms to the curve but it is wrinkled immediately where it stops contacting the surface.
I cut off the excess but it is hard to get the edge of the covering to iron down flat on the wood. The covering has also lost its flexibilty after heating and stretching. Is this normal or am I not really doing it correctly.
In the past I would iron the covering down at the edge and trim the correct size overhange and when it needed to wrap around a curve I would cut lots of small 'tabs' into that part and as I would iron it down the tabs would follow the curve and overlap themselves forming a sealed edge. On this plane I used my old method and the pull and stretch method and they both end up looking about the same overall.
In my judgement both methods produce an edge that looks ok but certainly not "excellent".
I know it is a lot of work to do a video but if you are just sitting around with nothing to do could you make one on just covering the wingtip with some very close up shots of what the finished edge looks like ?

Thanks for being a resource here, I appreciate your effotrs.