It sure seemed like fourth class to me. Nice photo.
Man, I was just on this ridge following a decent snowstorm, and one day of good sun. There was a foot of snow on all of the ledges and a good bit of ice. It was some of the hardest unroped climbing I have ever done. I guess that does not mean much for the class 3-4 distinction, since ice and snow changes things, but it felt hard.
I wouldn't enjoy doing that with ice or snow on it! With the exception of feeling just wretched due to altitude sickness, I found it stimulating (& enjoyable, but it was dry) for sure! Glad you made it down (& up) all right. Beautiful peak.