A little jalousie de métier is ofcourse not alien to me:
For instance, I can't draw bicycles and cars. The wheels won't be round, I forget essential parts and all in all they will look stiff.
Years ago I was asked to illustrate a small book about a girl and her new bike. In every drawing I hid that bicycle as much as I could behind trees, hedges and people.
So I always look with admiration at the cars, bikes and even agricultural machinary in the drawings of Dutch illustrator Philip Hopman (1961)
How does he get them to be so convincing, and also so cosy!!
(ps: I did draw a bus once accidently that I am proud of, in de liedjesalmanak, lente en zomer)