I found this piece to be particularly challenging for myself due to the size and the complexity of the pattern which had to be completely drawn out.
Each line had to be the exact length as the other in the same row and at the same angle. This made it incredibly difficult and time consuming, especially considering that if my calculations were out even a slight amount on each line then it would match up at the same line at the bottom, similar to trailing off the edge of each sentence if you wrote on plain paper instead of lined.
I’m quite impressed with how exact it came out considering how obstructive its size was when designing it.