The width of your Handle bars should be about the width of your shoulders. Imagine doing push-ups with your hand set far apart or too close together. The easiest pushup, or pull-ups would be with your hands directly in front of your shoulders.
Bar Height is not a big deal, but lately that has been a fad in the industry. You can experiment with flipping your top load stem to change heights. Also, adding or removing spacers in your headset. The higher your bars, the more leverage you get when you pull up, like to bunny hop. But, too high, and it makes nose manuals and regular manuals harder. If you don't know, ask the specialist in your local bike shop.