If you want to work with angled guides in Illustrator, here’s how:
View > Show Rulers
Click on the top or side ruler and drag a guide onto the canvas.
Make sure Lock Guides is not turned one (check View > Guides).
Click on the Rotate tool in the toolbar.
Click on the guide and drag left or right to rotate it.
When you’re happy with how the guide is positioned, lock your guides.
I’ve set up a folder (and subfolders) for the Elam variations you’re doing for each chapter. Name the files using this format: ChapterTitle YourLastName.ai (for example, Axial Johnson-Eilola.ai).
Also, there’s a discrepancy about how many sketches you need to do for the first round of logotype design: One place on the site says six and another says eight. If you only did six, that’s fine.