HI'all,
After stalkin' this post I decided to set up a photoblog for my paintings. You can set up your page preferences, choosing background colours etc, and there are no really visible ads - except - for a small reference to an ebay auction - which confused my viewers because you can't really see the picture of the item, just the price - so they thought that was how much I was asking for my work. All in all, it is a pretty easy and maintenance free sight to set up your site.
Hope this helps!