Samurai Rocket

Samurai Rocket has some nice pictures on its illustration page.  There's a bunch of NSFW pictures there, so beware if you're at work.  There's a really nice picture of a harpy in there, which I'll let you discover on your own.  Many of the pictures also feature alternate versions (mostly futanari) if you click on the links below the picture.  And yes, it's another site that chooses to use blocks instead of thumbnails to link to its pictures.  Why that's so en vogue on these japanese sites, I'll never know.  Here's a pair of pictures to get you started.