Still Life Drawing - Cup

Here is my new digital art.
Today, I tried making another still life drawing and this time, I chose a single object - a cup.
It's a moderate size rubber cup with handle but no cover.

I placed the cup on a ground as I observed closely from behind and sketched it

As usual, I started with outline sketches of the object before applying shadings by using hatching and scribbles.
After that, I proceeded in using blurring to add more shades and this helped to add more dept to it. Finally, it worked on the background.

The sketch was done with AutoDesk sketchbook application and aided with an S-pen. My steps can be seen below:

Thank you.