Realism in Tattoos

With the technological improvement that enabled the popularity of fine line tattoos, there is another style of tattoos that's on the rise--realism tattoos.
Would I personally want some of these tattoos on my body? No, but I'm a huge fan of these tattoos, and I am in awe of the artistry and skills it takes to do these tattoos.

Here are some of the ones that took my breath away (esp of their shade work):