North node, South node correct understanding
The first few diagrams show the lunar nodes coinciding with the first and last quarter phases, which is only the case every 173 days or so.
When the nodes are aligned with the new and full phases, eclipses can occur:

In this diagram from timeanddate.com,
our point of view is north of the ecliptic, the ascending node ☊ is in the 5 o'clock direction, and the descending node ☋ is in the 11 o'clock direction.
Nodal precession moves them retrograde (clockwise from north) about 19.4° per year, an 18.6 year cycle mostly due to the Sun's gravity.