Oh that is nothing man, that is totally common and not an issue. One of the things I’ve heard people talk the most is then when you’re starting from a concept art, you’d think everything is all set up perfect, but more often than not things wont line up, things will be missing, you’ll only get one angle, the back side is not showing and you’re going to have to use your imagination to complete it, etc. So using one hand to model the other, so many people wish that was all they had to worry about. So don’t mind that at all, instead think of it as an opportunity to practice the harsh reality that is the big mess a production is.