Challenge
Neither Henry Moore or Alberto Giacometti accurately portrayed proportions. I studied both in school.
The challenge was to choose only the most defining details within a time limit to convey the scene. Drawing my cat Mo was ideal. With an unpredictable time limit because I had no control over if he decided to leave. I made it harder for myself by often standing, drawing from positions and proximity any cat would find suspicious. A challenge. He usually entertained me for 10-30 minutes.
Perspective
Proportion
I needed to push out of my comfort zone but sometimes I took time to enjoy the moment.