Nap or No-Nap. That is the question.

Starting a new pattern today.

I have been procrastinating for days due to fear that I don't know how to do this. The fabric is an adorable vintage fabric I picked up on E-bay. I am unsure if it should be cut as with nap, or without. Most of the parasols appear to be going one way. Could you help me? There seem to be more red parasols going in one direction. How would you treat this fabric? Nap/No-Nap?

I just took the pattern pieces out of the envelope. They were still factory folded. It seemed as though I was doing something very special as I unfolded them, like they heaved a huge sigh of relief after being folded and stored for over 50 years. "Ahhhh, someone is going to do something with us. It was worth the wait
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Oh dear goodness. I almost spoke too soon. My kitty came in while I was photographing the pattern and sat down on the tissue. I was shooing her off and my two Shih Tzu's were wondering what the commotion was all about and came tearing into the room and running all over the tissue pieces. Thank goodness they were not torn, I would have been heartbroken thinking they had survived all these years only to be unfolded and torn to pieces by some dogs. Now my little guy is trying to make a bed out of the fabric. Aha moment. Small dogs and cats do not go along with vintage sewing. I will have to keep the door closed.