>>1661521This one's a bit more confusing: FIRST: MAKE ALL THE LINES BLACK. The colored lines don't look good at all because of poor color choice.
SECOND: The lines showing colors pointing to other colors: LOOK AT THAT CAREFULLY BEFORE MAKING ANY CHANGES. Add the colors to your swatches, then make the changes one at a time using the arrows as guides.
THIRD: Your corners are now parallel, but your thicknesses are not good.
Finally: that eye. The lashes should connect, the circled areas also show where shadows and the line colors should meet or where there is a gap int he shadow that needs to be flush to the eye.