So, I've been trying to work out the air pressure systems for (the equivalents of) July and January, but I'm honestly completely stuck. Here's what I have so far:

Northern Summer (~July)



Northern Winter (~January)



Dark blue horizontal lines indicate the low pressure ITCZ, red indicates the high pressure STHZ while light blue indicates the low pressure PF. Red circles indicate what I think would be the rough centre of continental high pressure zones while blue circles would indicate continental low pressure zones. The central black line marks the boundary between the northern and southern pressure systems.

Now, I'm completely stuck on where to go from here and exactly how the pressure zones would interact with each other, so any advice would be a pretty big help