Eerie music, good artwork.
The music was a bit eerie, made things a bit dramatic, though this isn't a bad thing. Artwork was good as well, an interesting concept with the ability to choose what side you want to click, I liked that because sometimes I found it harder to find the differences on the right than it was on the left. I ended up with a score of 2611.
On a side note, the first time you meet the old man, what exactly is that third bump...? Or do I not want to know that?