This pattern has bullet-points for those that like their instructions concise and to the point, with notes in between in italics for those who like a more wordy explanation with tips and reassurance.
Each point has one or more hand-drawn black & white diagrams to save on printer ink, with colour photos only appearing when a step might be particuarly challenging to interpret without.
The pattern pieces are full-size and can be printed out on A4 paper (portrait, not landscape, orientation) with no need to enlarge them.
The instructions include detailed explanations on how the pattern pieces should be cut and labelled, as well as an explanation of any terms that pop up during the pattern.
In terms of what level of sewer the Tabitha bag might be suitable for, I would suggest intermediate to advanced. It is a challenging bag to make in that there are so many pieces to it, many of which require being aligned very precisely for it to come together looking perfect.