.the height of my bass was where i put it at. mine was mid center so was average hieght. the space was equal like positive and negative, it was evened out on my drawing. my orentation was in order because if you rotated my drawing you could still see the roatation of my drawing. thick,thin, and light line on drawing was the best becuase of the shades of my line quality. it looked realistic in every orentation.