Interesting capture. Good colors that are well saturated. I like the bits of cloud in the sky. The composition could be a bit better. I would like to the horizon a little lower for starters. Its placed using the rule of thirds but the real interest comes from the orange in the sky. If the middle of the orange band was dropped to where the horizon is right now, it would create a lot more "pop". I'm not sure if the tree could be place off center or not but that would also help.
This is a nice sunset and using a single subject adds a lot of impact. I'd like to offer a couple of thoughts.
This is a good instance where using the "rule of thirds" would be an excellent idea. Putting the tree one third on either side of the image would have really improved the image.
Also, the tree is really small in the frame and there's not a lot else to add interest. It might have added more interest if you could have filled the frame with more of the tree.
I understand that neither of these may have been possible (if you were a long way away and clutter on either side of the tree). Just my thoughts.
moving the tree out of the center of the picture by cropping tighter to the left, would increase the impact of this photo. The tree should really dominate the picture. You're giving too much away be leaving the dark right part of your picture in the photo.