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12. Duplicate this layer that you have just painted and alter the color (Ctrl+U again) for one more orange or brown. Choose another layer mixing type to produce a result as the one shown below. Rotate and resize that layer and, if necessary, alter the layer transparency to get a satisfactory result:

13. Softening the iris outlines to break the painting aspect. For that, use: Filter> Blur> Gaussian Blur... Choose a value not very high for not blotting too much. In this case, I used "6":


14. To darken and to delimit the outline of the iris, use the drop shadow with "Distance=0", little or no "Spread" and the best value that you find in "Size". Change "Blend Mode" to produce the best effect. Tip: you can also use "Outer Glow" to reinforce the shadows, like shown:

15. Select the layers where you painted the radial waves and apply a drop shadow, so their lines will have volume and seem like fibers:

16. To randomize a bit, create a new layer, select the white color for the background and the black for foreground and apply "Render > Clouds" filter. Blur their borders using gaussian blur filter and a few times:

17. Add more details to the layers where you worked the irregularities. Create a circular selection and go in the menu "Edit > Stroke... ". Choose a high value for the stroke (12, 14 etc). Applying the stroke you will obtain a result like this:

18. Use the gaussian blur again with a high value, according to the image on the left:

19. Resize that layer to center of the iris, adding certain depth in that central area:

20. We will begin the blood vessels creating a new layer, choosing a red color but with a little bit of orange, to break the red aspect. Choose a very small brush and begin painting at the center-borders and borders-center directions:

21. Create a new layer and add more veins larger and smaller:

22. Create another layer and add a red border as indicated on the left:


23. Create other layer where you will add some small blood vessels, creating some stains in the located area between the iris and the white area of eye surface:

24. Here is the "final" version (don't worry about the reddest parts. It practically will disappear in your character's eye):


25. Here a close-up to see the details better:


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Readers Comments (Newest on Top)
Kez on Mon, 01 June 2015 6:45am
Thank you so much Kris, I love all your work and this will come in very handy hope my attempts look as good as yours, awesome! As for layers, not hard to figure out at least for me, thanks again:)
3d Learner on Thu, 20 March 2014 1:21pm
What a great and effective tutorial ! thank you very much, the result is really great, detailed and now no more downloading from internet ! Thanks again !
Evelyn on Tue, 06 March 2012 10:27pm
This is one of the worst tutorials I've tried yet. Non-specific directions on what layer to apply irregularities on, and the author fails to show which layers are labelled. Very poor.
Christine on Sun, 12 February 2012 5:07pm
Would be even better with shots of your layers. Awesome tutorial though.
Deborah Valentine on Tue, 10 January 2012 12:52am
I love this tutorial, it is very cool
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