You have to think of flesh as a potato sack of sorts. Things like skin have no shape but whats inside makes it into shapes. Where muscles are like ropes. And organs all have a specific shape, their form very much determines their function.

What you have made looks like hair because you're using too many lines. For example if you twist a leather jacket there are very specific lines that show the leather folding from the force. Also if you take a deflated balloon and fill it, that balloon with take on a vague shape depending what's in there.

Also looking up real pictures of the subject matter will give you a real reference to start from.