It's really interesting to see how much you improved from when you first started! It looks like you fixed most of the mistakes you used to have, which is great. Your latest piece has nice flow and the background effects definitely enhance the render. I also like what you did with the lights :-]
This is my favorite tag of yours, though:

Love the smudging here, and the black/white works well. Text isn't too bad or out of place either.
Overall, it's awesome that you decided to pick up graphic-making again!
I'll keep an eye out for future updates ;-]