Bernard,
I often feel like an undiscriminating yes-man when I look at your photos. So I've decided to put some extra effort into coming up with some "constructive" criticism. Here goes:
In the first one, obviously you should have used some exotic pano-tools manipulation to straighten up those slanty trees. We all know that trees always grow straight up.
In the second, the colors are a bit muted. Maybe you should have waited for the sun to burn off all that unsightly mist.
In the third one, if you waited until summer, the green foliage might have shown to better advantage.
And in the fourth, I seem to recall some Kodak book on Taking Good Pictures recommending that you only take pictures when the sun is high in the sky and behind you.
You've made a good beginning, but if you take my advice, you can turn these merely magnificent shots into Ordinary Snapshots!
Cheers,
Eric