low quality, worst quality, out of focus, ugly, error, jpeg artifacts, lowers, blurry, bokeh, bad anatomy, background not in deep grey, rose not centrally or slightly off-center, absence of color gradient on the rose, absence of starlight or moonlight for shadow effects, absence of dew drops on rose petals, image not harmonious and unified, no fine-tuning of color saturation, contrast or brightness, normal quality, bokeh, signature, watermark, username.
