When I read “knit 12 rows” I think of garter stitch. But the photo shows a (sewn) seam. ???!!! Myself, I will work a simple garter stitch border.

The number of stitches for casting on doesn’t match the number of stitches between the markers at all. No problem for me, but for a pattern as expensive as this???

The chart of Gingham pattern is not correct. You have to work one of the blocks in darker colour. Marked blue in my photo.

I found a better houndstooth pattern online. http://blog.jonesandvandermeer.com/aint-nothing-but-hound...

I’ll exchange the contrast colour. Orange doesn’t look as good as I thought (sigh).

Now I’m making a new contrast colour - light turquoise.

Both sleeves with steeks in between on one circular needle - as usual.

All in all: Expensive pattern, but - apart from the idea itself - too expensive for a quality like this…