From what I can see, that looks perfectly normal and standard from all I have ever seen. A couple of times I have had to tear down engines with low miles for inspection (like a race engine that blew out all the oil and I wanted to look at the bearings), and the cylinder walls looked just like that. I don't see anything like overheating or scuffing or rings momentarily seizing in your pix. Actual problems like those make the wall marks look a lot more serious.
Leakdown test? That will be your real objective answer if you are not comfortable with opinions or others' experience.
