The character is looking pretty clean and really well painted, good job
However, I agree with @Khulim, the snake looks a bit awkward in the scene and unaware of whatever the main character is facing. I think changing it to a more menacing pose facing the viewer would be better.
Also, when detailing the background, I suggest to keep the values in mind, both foreground and background are mostly in the same range.
Other than that, keep up the good work