For a start I always fold the fabric with the right side out, and the sewing police have never prosecuted. Seriously, you can see the pattern of the fabric that way and make sure it will match on the seams if that matters to you. ( I hate it if it doesn't.
As your pattern instructions have you folding the fabric crosswise for the skirt pieces, two of them will have the pattern upside down as well. One of the skirt pattern pieces is supposed to be laid wrong side up, and I am having trouble visualising why.
If you are using plain fabric, the upside down two pieces shouldn't matter unless there is a nap ( like velvet or cord). The pattern is trying to cram large skirt pieces onto narrow fabric. If it was me, I would use 140cm wide fabric, buy a generous quantity, and fiddle about until all the pieces fitted to my satisfaction. However I almost never look at the suggested layout, so feel free to ignore me. The small pieces are waistband interfacing? It just wants you to place them on a fold so you get two whole pieces, I think.
Hope this helps.