US Manga Corp. is quick to inform us that Photon is not for minors, and that everyone in the anime doing naughty things is actually over 19 years old. Sure they are. Anyway, despite all the random silly nudity and cliched situations, I liked Photon. This is pretty obvious to see when watching it. A lot of the clothes worn by Papacha and the princess really struck me as very Tenchi-like.
Some Mechanical designs are similar too.
Not that this is a bad thing, just something I noticed. The edges could be sharper around the characters, but the colors don't bleed, and are bright. The animation quality is surprisingly good, considering it's a rather silly OAV series. There are some CG effects when spells are cast that look believable against the flat animation backgrounds. I had no issues with the quality of the sound.