LadyPsychic

Story

It's a post appocallyptic future where humans live underground.  The main character excavates digital data on what Earth was like before.  However, he is the only one who is still interested in excavating the data since everyone else (including his girlfriend) has given up hope and wishes they never excavated the data in the first place.  The story can be a bit slow at times, but I personally think the slowness actually helps with the overall atmosphere of the show.  The twist ending also helps.  I do wish there was more to it, though.  That said, it is a beautiful story.

Animation 

The animation is pretty good and the dark tones really help with the overall atmosphere of the show.

Sound

The background music fits the atmosphere of the show for the most part.  The song towards the end is also quite beautiful.

Characters

Considering the length of this OVA, the two main characters do get some semi-decent development for amount of time given.  They also help set the tone of this OVA.

Overall

If you want to watch something thats slightly dark and very atmospheric, and you don't mind the somewhat slow pace (and the fact that you will probably be wanting more), then you will probably enjoy this OVA.