How do you develop global wind patterns for your world?

I’m trying to develop climatic maps for our countries and know that wind is a huge part of that. Our world is shaped the same as Earth, it’s just a little smaller, and our axis is slightly less tilted (about a 20 degree tilt) so we have less dramatic variations in climate and season. Here’s a draft of prevailing wind patterns, does it check out? I just sort of looked at the Earth’s and followed patterns but had no actual scientific method other than making sure wind turned in the right direction based off of hemisphere. Is there a method? Do I need to come up with specific pressure cells? Thanks.
For reference:
-Vitya: 7.86 mil mi2
-Eios: 2.97 mil mi2
-Amari: 3.02 mil mi2
-Sabriel: 1.53 mil mi2
-Noor: 22,000 mi2