Since I can't make any tutorials ( I truly suck at explaining stuff ) I sped up my process about 8-16 times x) and I alos tried not to zoom in and out as I usually do so you can see more clearly what I'm doing there

.
This just MY way of drawing eyes , it doesn't mean it's "right" way of drawing eyes , and yes I know , it's NOT realistic , or at least the shape of the eye . I focused more on the iris , I mean ... come on , I didn't even draw the eye lashes .
As for the Purchase thing I added PSD file ( Photoshop )

.
Excellence !!!
I've always loved the way you draw eyes