The best way to develop an accurate eye is by deliberately practicing discrete skills.
An Accurate Eye: Learn to Draw Better by Learning to See Better contains over two-dozen practical exercises suitable for everyone who wants to improve their visual accuracy.
Plus, you’ll also get a 42 page supplement with additional exercises!
Hi! My name is Darren R. Rousar. I am an artist, teacher, and the author of numerous books about Sight-Size (as well as others about Memory Drawing). I have been helping aspiring artists like you learn how to confidently draw what they see for well over 30 years.
You can learn more about me here, more about Sight-Size here, and get answers to your questions over here.