Wow I think i might be the first to actually notice this, But In Snow Peak Mansion In TP, on the 2nd floor, in the room where you have to knock a chandelier sideways, then another one vertically to get to a chest with a red rupee in it theres a painting on the wall that looks a red swirling mess ..actually looking at it , it looks like a distorted Demon Lord Ghirahim.. wether an easter egg like the whole dolphin thing mention pages ago or, if its actually a hint that Ghirahim plays a much more noticable role in Zelda.