How about a map which depicts the prophet Mohammed? Then you would actually be able to cause some trouble.
You could argue that the female (as well as the male) body is a natural thing, and that covering it with clothes is in nature offensive, because it's the most natural thing in the world to show. We are all born naked, and we are all equal when we are naked. In a sense. Putting clothes on people divides them into social segments, races, power positions etc. I think there is an argument to come back to what we are, and also dare to show it.
That said, you could criticise the map maker for using a quite unnatural representation of the female body, probably photoshopped a lot to appear thinner, better looking skin etc, all just to suit a western and male stereotype of women, whereas quite few women actually look like that. To be more fair, you should use maybe a slightly overweight woman. Thousands of teenagers starve themselves to fit into to expectations we have on the women, whereas fewer men suffer from the pressure to be fit and thin.
The other issue is with stigmatising the porn industry. Making it a problem does not make it go away, and will only turn it into a grey industry, which does not benefit from socal legislative protection and does not pay taxes. On the contrary, by decriminalising this industry and bringing it into the open, we can work with things like hiv-preventation and human trafficking, all of which are pressing issues of this century.