I assume you are referring to Iba N’diaye / Lesson 4. I'm wondering if you saw my Lesson 3 that had the Mountain Laurel at Childs Park featured? I can't find any comment from you about that one. It is located on page 6.
Lesson 3 Diamond Template.
Font is Single Fighter (CF). I made lots of tiles using the Kaleidoscope, some seamless and some not seamless that looked cool as a smaller size. the background is subtle(and might not show up) and is made from two not so seamless tiles in a small size and at 45 degrees and a blend mode of lighten. Then i added a texture of bricks to simulate a graffiti wall over the mask group(rasterized) and the text group (rasterized). Such a fun effect. Everyone has been making such cool plaids and backgrounds, super inspiring. Photo is mine.