I'm with nanashi, I wouldn't mind it a bit darker, even just a light grey would be better. Background is kind of lame/doesn't work well too in my opinion.
Not that it actually needs to be changed though.
I have the rare Otome games Darling I and Eisai and the 108 Guys R18 to choose from. I'll only share it with someone who answers my requests for my games Luckydog1 Doujin Game - Taiyou to Tsuki to Inu to Usagi or Shikkoku No Tsuki