Copic 0.03 Multiliner pen (over now erased Faber Castell HB pencil) and
Tombow pen on Handbook Travelogue Journal, 5" x 5" (x2)
Another from thevirtualinstructor.com drawing challenges. This was so tricky. The issue was trying to draw straight lines on varying diagonals but this only proves that these are great challenges as they really force you to think.