Hey Sage \o/. Since you're using a circle as your base (I think), you should sketch that circle lighter to get the form and then draw the eyelids over the circle. The eyelids lines should be smaller than the circle itself (which you did) and shouldn't have a very circular form if you're going for realism since they are most commonly not. For making the shape of the eyelid's lines, I'd suggest sketching straight lines first and then drawing a curve over them. The distinct lines for the eyelid's end that you made shouldn't be visible or should be very lightly sketched. The only case that I can think of where a hard line is present near the top of an eyelid is the double eyelid line which I don't think you were attempting. The iris of the eye should approach more the top eyelid than the bottom one if looking straight. The eye muscle that appears in the corner of the eye should create more of a straight line with the eyelids than a circle.
Here's a diagram of what I was talking about if it helps:
The cross line was just to help place the iris and the top line above the eyelid line is a double eyelid line. Note that all of what I said could be done differently and that it's really just how I would go about doing stuff. Also note that I don't draw realistic eyes that well so follow at your own risk.