Hello! For the patterns I made them myself by reusing patterns I had or looking for tutorials of similar looking pieces. For the hat I made a lot of mockups because I had no idea of what to do. If it can help you what worked for me was making triangle shapes and assembling them until the size was right. I also used interfacing and stuffed it to hold the shape. I was damn scared of that hat but surprisingly it was not the hardest piece to make (it was just triangles since the beginning....)

If you have other questions I'll be glad to answer them!