Those look great, but I'm a fan of the Black/White/Black/Red/Black/White/Black, and the White/Black/White. But love the journey to see new visuals. Be well Alan!
I am a fan of keeping it simple. I do not like large spacers. I like the trim ring material better. Now there are some blanks that will look good if you incorporate larger end pieces but I do not like mixing wood with acrylic like that. I would rather stay with all acrylic. If i mix wood with oops bands or trim rings I try to keep wood with wood. Just an opinion. I am sure you will make some great looking blanks.