No, the thumbnail is too small. In such a small size, some artifacts are unavoidable. - Feed Post from spanz to beeant

No, the thumbnail is too small. In such a small size, some artifacts are unavoidable.
I'm talking about the big photo. In fact, all your landscapes show some aliasing. The other pictures seem to be ok.
If you are interested, tell me and I will tag a couple of these distortions in your photo.
It's not a picture problem. It's a resizing / resampling problem.
I'm sure your original photos are way bigger and don't show these distortions.
Please, note that I'm not criticizing your photos. In fact, I've commented this because I think it's unfortunate that some of your great pictures look so strange.
I know all of this is irrelevant. The main point of the photo section is to tag elements to practice vocabulary, and your pictures are perfect (and beautiful) for that purpose, so don't worry.