I played with some texture on this. It looks to be a mix between a X-Ray of the cow and some chalk art.
I will post the pic of the print later if I get one. It was worked and tweaked so that dot gain was not a major factor on this one color. People tend to print them way too heavy and they only wanted one color. So, with halftones, you make some major adjustments on areas you can foresee as trouble. I do at least three stages to get a good halftone.
1, I flatten the art, copy and paste into channels and then make one a copy, Of that copy, I adjust the shadow end back to as much as 65-50%.
2 Next, I copy that original again and adjust curves burning out the highlights to a good 35-50% area and fill onto the original 65-50% cut back version.
3, Then take a copy of that last one and burn it out again. leaving only the brightest of the brights. Now, I do go back to the shadow area and adjust that to become more solid with the levels. I drag only up to the point where it needs to begin to be solid.
Once printed, this makes for a good (one color) toned print.
This was the original sketch. The sketch took about 30 min to work out and was sort of a quick thing. Total custom job cost was $65.00 and people think I'm too expensive.
really, some art styles lend themselves to being able to be completed faster. This had no need for "defined, clean outlines" or correct anatomy. So, it came out faster.
http://www.theshirtboard.com/index.php/topic,5240.0.html