#5 the bands can all intesect as well, the circular pattern looks good, it does not have to remain circular, figures look great in that they are a good size, shape etc and they look real because they are touching what appears to be a road.. multiple band colors can be introduced in the sky as well
#6 this is looking much better however it would be interesting to see the bands intersect with more colors added, you do not need to stay inside a circle as well