What I see are patches of lichen, which commonly grow on tree bark over time. I do not see any fungal health threats. A good way to assess the overall health is to look at the top half of the tree crown (all of the foliage). If most of the foliage looks healthy and there is vigorous new growth that is a good sign. Lower branches and interior foliage may be thinning or not as vigorous, but that is usually not an indicator of serious problems.

I also saw a little sap bleeding from a branch pruning cut. Not a problem. But it is important to note that it is best to prune pines in fall and winter rather than during growing season. Pruning pine during the growing season can result in more sap flow and invite infestation of pitch moths, which can infest pruning wounds and cause chronic unsightly pitch oozing and damage around the pruning area.

Wow, thanks so much!  That is such great information.  I really appreciate it!