I've just finished doing a Jane's Bookmark Cross for a friend (pattern here – and here and here! :-) ). I used Lizbeth Wildflower Size 40 – it's one of my favourite colourways.
I had a lucky accident when I started it – the first ring happened to be blue, the colour in the middle, where the colours start changing in opposite directions. (I.e., Green - red - pink - yellow - purple - blue - purple - yellow - pink - red - green). So, the colours on opposite rings were almost the same. Of course, when I started the second pass, I deliberately arranged the colours in the same way. A very pleasing effect, don't you think?