the background looks okay, the signature itself could use some contrast or blur/sharpen.
the biggest issue here is that the render is LQ and makes the entire sig LQ, if you resized your render (Crtl +T) always hold shift while resizing to keep the quality. If you didn't resize it then your render was LQ and you should look for better renders.
the biggest issue here is that the render is LQ and makes the entire sig LQ, if you resized your render (Crtl +T) always hold shift while resizing to keep the quality. If you didn't resize it then your render was LQ and you should look for better renders.