To Get Perspectives Right Is Essential In Art And Can Really Change The Feel Of A Drawing Drastically.
I See A Lot Of Drawings Where They Keep The Limbs The Same Width As They Go Towards The Camera (This Is How I Used To Draw Too, Don't Worry), Don't Be Afraid To Experiment With Lengths And Widths Of Limbs! If Everyone Had Limbs That Appeared The Same Width To Someone Front On, The limb From A Side View Would Look Pointy, Which It Doesn't In Real Life.

Idk, Just Something For Ya To Think About