This is spectacular!! The way you use lines is so strategic, from the tiles on the floor to the tiles on the roof, to the hatching!! It's just so good!!!! Comfy pose and amazing colours too, this is some incredible work here!!! Like, the way the smoke trails upward to lead you to the text?? Insanely genius!!!
If I had to suggest one thing, it may be to consider increasing the size of the canvas so that the text fits a bit better on the trim margin/safe zone. Basically, it would be more aesthetically pleasing if the text had more breathing room I feel, and that could also be achieved by making it smaller as opposed to adjust the canvas since that'd kinda mess up your focal points.
Anyway I'm rambling! I hope you don't mind my critique, but I look forward to seeing more amazing masterpieces from you, keep it up!!!