Foundation issues/ Concerns? See Pictures

[Jeff Bridges]

Hey BP nation. Anyone take a look at the photos to see whats going on and if there should be any concern with foundation issues?

House is on a hill and appears to have backyard grading that grades toward the house. It appears to be causing a sinkhole and some erosion along side of house.

#1- looks like some erosion that occured along the side of the crawlspace cinderblock foundation with parging. 

#2- Looks like there is a sinkhole (I'm told by neighbor that this has been filled in before and has returned)

Let me know if you have suggestions on how to address these two issues. I cant regrade the backyard since the whole yard is uphill. Maybe I could put an outdoor french drain in the middle of the yard to drain toward the driveway and away from house?

photos can be found here:

https://imgur.com/a/uoYIi5V

something like a french drain is proposed in red in the last image. Would that work?  I just brainstormed that on my own. thanks in advance for your help!