I got a lot of images from random sites which are now offline (not even static, completely AWOL!) so it's hard to cite specific examples. The black and white images are from a scanlation by the Starry Heaven Scanlation group, which is available for download on this website. Their website is static, however, and has remained so since 2003.
When I recently lost all my images (due to hacking) I found a decent site that had copies of my images but it's in Italian. The link is:
http://www.shoujo-love.net/pq_angels/index.html
A good place to go to learn about any of Takeuchi's manga is Alex Glover's "The Manga of Takeuchi Naoko" this has translations to many of her series (ahem, ALL of her series) including PQ Angels!