Love the simplicity of #8! and the expressiveness of #5. The sun is a little prickly….could it maybe be more yellow and a little rounder or something? How would a golden tone work on this? Visually, "gold" seems to end up a shade of tan, but if there is a shade that could be visible but more yellow, would love to see that.
#28 works with the round, but #27 with the textured look is a bit weird in round…..is there a middle ground? Just a teensy bit of sun ray, but nothing too sharp looking?
Could you give #8 and #5 a try with some of the colors swapped around? (Blue background) - and maybe slightly shorter rays. There is no way around "sharp" rays without going flat, and then it looks like a Roman helmet :) Or maybe the sun could be a twirl or line instead of solid? #8 is so fantastically clean, but it may need some sort of eye staple/mark to work on a sign...