There is no substitute for practice before starting work on a project. Learning how to shade is priceless. I gave my late wife Sue some plywood to practice on when she was starting out and she filled it with different designs. I was very impressed with her results which are in another thread from when this sub forum was first started. Here is her third effort to encourage you.
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"