Maidenheim Artwork
Arcady is right to comment about the Boris Valejo images in the early days of the Maidenheim website when the material was free to view. Those images were eventually removed because of the partial nudity his statements imply, but there certainly weren't any images of lactating breasts... that would have been quite gross and tasteless, in my opinion. For those of you who never saw these older pictures on the original Maidenheim website you might not have been aware that they were ever used, since I did remove them quite some time ago.
This artwork was also doing damage to the credibility of the actual setting material, putting viewers in the position to judge the quality of the site only by its cover. In retrospect, I never should have used them. Hence, there are only a few pieces of art posted for Maidenheim now, since I have to work with artists to create entirely new ones under more strict and plausible guidelines. Les Evans is doing a great job at meeting these standards, so you can expect to see a lot of work from him.
The artwork that is being developed for Maidenheim now will not be of the "cheescake in chainmail" variety. So don't worry, as more of it is finished and completed, you won't necessarily be looking at images of women you'd want to get personal with.
As for the maturity level, Maidenheim does take all of perceptions of the Amazons and turns the worst of these myths into realities, such as the manners in which they cripple their infant sons, the roles men are delegated to etc. Some liberties had to be taken with how these women could continue to thrive as a society with so few men, so slavery is also an issue. Due to events in their history and their current unbalanced gender proportions, it isn't in these Amazons' interests to kill every man they see (that would be a stereotype, by the way). There is a lot of ugliness and tragedy in the story behind Maidenheim, but it isn't anything that either can't be or hasn't been done to people in our own world. This may offend some people as well as disturb them, but I think basing these women more on the myths of the Amazons rather than the way we'd prefer them to be is the way to go here. Maidenheim is not a place even I would willingly want to go to...
So overlooking the past error of improper artwork from almost a year ago, I do think Maidenheim has some legitimate possibilities within any fantasy RPG, and is definitely something that DMs or GMs and players should at least consider if not use.