To tackle any drawing the 1st move is to simplify the scene you are faced with.
Look past the surface and see the basic form. The details can wait till the drawing is just about done, then the details effortlessly fall into place like the icing on the cake.
This is why, practising the basic forms - Cube, sphere, cylinder, cone and gesture drawing helps to acheive
this ability to see beyond the superficial.
It is THE beginners mistake, focusing on the details and not seeing the true forms.
Turn your drawings from 2D to 3D. Get that 3rd Dimension,that is what makes drawings stand out and
gives them life.These preliminary sketches by an Italian master Luca Cambiaso were his way of working out the forms that were to make up complicated paintings.