Finished Work Of Art Is Always Fine

Some works can be discouraging.
Hello everyone!
Here is the drawing that I made today.
Drawing this piece was discouraging. The reference was not fine and it was giving me tough times drawing. At a point I wanted to stop working on it but since I already assured the client that I will deliver, I had to deliver.
I'm glad it came out fine at the end.

Pencil on paper ✏️
Size: 16x20 inches
Duration: 10 hours

Materials used: Fbb paper, Mono zero eraser, brushes, graphite pencil, General's charcoal,

Processes below:

Thank you