Hi @anowarhoussain!
You have made a powerful drawing, with character, executed geometrically, well centred and occupying the entire page, which increases the strength that your tree seems to represent. Congratulations!
However, I have some observations that I hope will serve you in the future:
Regardless of the final look or style of a drawing, always start drawing with smooth lines, so if you need to erase some pencil strokes, don't leave grooves that have damaged your sheet.
I think your drawing would have gained a lot from having a higher tonal contrast (dark even darker and light lighter).
Generally, a geometric drawing requires more precision, both in the lines and in the fill.