I always talk about long lines when it comes to drawing. Long connective lines and shapes help unify the drawings so that there's a harmony and rhythm to it.
When drawing, a good way to keep those lines and shapes flowing is to pivot from the shoulder. NOT from the wrist. Drawing from the wrist limits our ability to get fluidity and movement in your work. Also when drawing from the wrist the shapes tend to not connect to each other as they're drawn shape by shape.
Try it next time you're drawing. Keep your wrist in comfortable position and draw by pivoting from your shoulder. It may take getting used to but it's totally worth it in the long run.