There is such beautiful imagery in nature itself and you write about that beauty amazingly.
Stanza one- The feelings are well represented here because the reader feels how you are feeling. You are worried about something, and that could be one of many things. You are lonely as well and that tells me you are sad and possibly missing someone. There is so much detail here, you are in a forest and that tells me you are surrounded by trees. And it is autumn so there is color all around.
Stanza two- The leaves have a calming effect on you, so that tells me you have a connection with nature. And quite possibly the spot in which you sit, is somewhere you have been a lot. I did enjoy the last line in this stanza because it could be interpreted in a lot of ways. The way i see it that place has or had a special meaning to you and possibly the person you miss.
Ending- This ending is not only great for it's beautiful imagery, but its for the attention to detail. When people think about autumn they think about a chill or cold in the air and a breeze. So both of their placement in ghe poem is perfect. I do think there is a hidden meaning here too. On the outside you are cold because of the weather. But inside the cold could represent sadness and the sunshine could be happiness. So you are waiting for your happiness to come.