here's another document for you to critique - the VCR directions / document design assignment.
In this one, pay particular attention to how this writer's design elements affect his/her conveyance of information.
How do headers, white space, graphic(s), etc. help you, as the reader, "get" the information.
And - does this document deliver two primary tenets of Technical Writing:
1) displays that it understands its audience
2) informs the reader as to what this documents purpose is?
Have at it - reasoning through this will, in turn, strengthen your own writing.