Those are extraordinarily noisy photos. The first one is okay in the tiny size it displays at in the post, the other two, not even that. Cell phones are inherently incapable of taking fantastic lowlight images handheld, because their tiny sensors and the tiny pixels on them, and the tiny lenses that fit in the phone simply cannot collect enough light to keep noise low enough. You can get recognizable photos to put on facebook, sure. But not gallery quality photos or something you'd want to hang on your wall in an 8x10 print that looks good.