Herringbone question

[TLovelace]

I am an experienced tile DIY'er and am working on a herringbone backsplash. I have avoided this pattern because of its complexity. I watched some videos and still am having challenges. Here is my question: I have a backsplash that has two 22.5 degree angles in it. I've marked the center point on all 3 walls and started plotting out some guidelines. Of course, the guidelines do not meet at the angles. Do I start at the center of the center panel and work from there rather than trying to do 3 separate panels that are not going to line up? Attached is a picture with the guidelines. I think that is the answer but I wanted to verify first. The smaller 2 sections have been absolute bears.

Thanks!

 

[Kastar UK]

Do the center and line the cuts up for the 2 wings hopefully lands ok at the ends but should check , set it all out flat on a board and draw the cuts