I have to say that the dots at an angle do bother me, and I think I'd have a really hard time using them. I'd feel like my block or the border, or whatever I used that for would look off kilter, and I manage to do plenty of that myself, thank you very much.
The bottom sample - the red and black one - would make a great companion to another fabric that was the topic of a long thread on here - but I can't find it! It was the fabric that was beige with a print that looked like 'male anatomical parts'. Maybe somebody else will remember what that thread was called. Anyway, this red and black reminds me so much of that, except without the 'round male anatomical parts'.