Translation of sentencioso

There we saw a lot of these beautiful trees which I had heard about when I was back in Germany. We visited the folliage and saw some amazing lakes in the northern part of the state, different from the rest.
Please write me from your home as soon as your are back. My Spanish is better than that of most Americans, but my English is worse than that of most people here. It is a strange position that I am in.
In order to see it you have to complete a lesson. I attached a screenshot. I did not place any rating there, so that it will not demotivate some of the users, especially the fresh beginners.