I have no product design training what soever, but really want to learn. just started to try out design sketching, i plan to try to study product design next fall, after i graduate UCI and was interested in learning how to draw in design style, especially shoes. please critique, advice, or anything else. looking to learn and improve. Thanks.
p.s. this was all done in a very short amount of time at work, so i know it kinda sucks, but any advice/constructive criticism would greatly be appreciated.