Isn't your wife the one with that really cute butterfly "down there"? Re: the 2"x2" It might be better to post large images so the detail can be clearly seen. You can then have it printed at the 2x2 size, but it'll have a higher ppi; but the tattooist should be able to work from a larger image, just like any other artist. If not, get another tattooist. Just a suggestion.