Pillows for my new sofa

So here is my new sofa, isn’t it pretty? It’s begging to be decorated with pretty pillows.

This cover of domino a few months ago inspired me to go with a similar color theme in pillows: A couple of cool black and white geometric patterns and a couple of floral and/or a solid yellow.
The three fabric sites I’ve been looking at (since I’ve already exhausted the Pier 1s and TJ Maxxs for ready made pillows) are Sew Mama Sew, Purl Soho and Reprodepot. They are all really good sites. For the florals, I was thinknig of pattern on one side and deep blue velvet on the other side (velvet the color of the sofa above). I already have some pretty floral fabric from Purl that I’ll make into one floral pillow, but I’m also thinking of using one of these:

This floral

This pretty one
(I really like this one)
Here are a couple of the black fabrics I’m considering for the black and white pillows.
I think I like this first one the best:

This

This

This
I don’t think I have a great eye for these things so I’m open to suggestions?