Very "rich" and appealing image. Also, great smoke capture.
Compositionally, this is one of those shots where a "centered" subject works well. Perhaps this is because the smoke drifts up to one side leaving some negative space that offers some balance to the composition. Also, the division of leaves on the bottom, vase, and smoke, gives it that division into thirds that makes it into a stable picture. The only suggestion I would make is to lower the angle of perspective if possible. Right now, the viewer is looking down on the subject, and it loses some impact, I think.
Technically, I love the rich green colors. The lighting is spot on and illuminates enough to give it texture and character, but is "dark" enough to add some interesting shadows. Also, kudos on the capture of smoke. I tried this recently on a couple of occasions, and all I got was a near-traumatic experience with the smoke detectors. That capture in itself makes this shot technically well done.
Overall, I think you have a shot you can be proud of.
Nice tones, I like it. I also like the fact that the border is subtile and doesn't distract the attention from the image - like so many others in this challenge do. One nit is it seems that the pot tilted a little to the right. Maybe it's just the lighting playing tricks, but it throws the balance a little off to me. 8
The more I look at this picture, the more I like it. The strong light looks like daylight and the different shades of green look fantastic on the black background.