6mins sketch of a dog while sitting at park

Hello everyone
Today, I decided to test my speed in drawing anything while sitting at a nearby parking waiting for my friend. At first, my wanted to draw human but the difficulty in getting an accurate proportion was a bit challenging so I opted for an animal. Of course, a dog was my choice.
I used pencil to sketch and a red pen to finish the scribble.

my progress

How is my accuracy despite the speed?🙈
Thank you for stopping by