Hi Deb,
Those look great!
As far as I know, all-Quad is mainly for Subsurf Modeling and similarly, if you use Multires for Sculpting. An occasional Triangle is okay in those cases. When used for (Multires) Sculpting, the Quads (Triangles) should be as even and regular as possible. So something like this:

Is totally fine for Subsurf Modeling, but completely unacceptable for Multires Sculpting.
The (free) Press Start Course: https://cgcookie.com/courses/press-start-your-simple-first-blender-project
is a great demonstration of Modeling with NGons (amongst other things).