Look at this, the iris is not an sphere, is more like a disk in front of ocular globe, so, if I draw profile or 1/2, 2/4, 3/4 profile faces I should draw iris like OVALS

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This time I did the doodle without tracing (but looking at reference) , I tried to make the bell wider and shorter. Too wide bell may be an issue. I should get more control on the shapes

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