I posted about the first of these Per Una skirts on artisans square.com but wanted to show you some more I saw when I visited the store today.
The second in yellow green and cream is very springlike and only uses 3 fabrics.
The one all in pink would be easy to recreate, just machine dye a whole lot of cotton fabrics with white backgrounds with a strong colour of your choice.
The brown one has strips of crochet trim as well as uneven width panels.
I didn't bother trying any of them on as RTW bottoms almost never fit me, which is why I sew more bottoms than tops. But the inspiration is free!