This may seem odd for me to fixiate on, but upon glancing at this particular piece, I've noticed a small quirk within your artstyle.
The lineart appears to shift in size for certain parts of the body, with the most notable example being Sahara's backside and the tips of her hair. The thicker lineart seems to subtlely provide greater visual prominence in the viewer's line of sight. And given that the clear goal of this illustration is to highlight Sahara's curvaceous form, it makes this goal highly achieveable - which it has.
With this observation in mind, I feel inspired to experiment with this method of lineart in my own drawings.
Now, as for the rest of the illustration, there isn't a whole lot that I can realistically comment on; it's just Sahara doin' her thing. Although, I do wish there was a more stylized background. Having no background's alright, but I feel that consequently kills an opportunity to take advantage of the canvas's negative space.