That is an EXTREMELY noisy image, and because of that, getting anything to match and look plausible is going to be a challenge, since you will not only be trying to match the basic texture, but the noise grain as well. Also, the blurry hand part actually overlaps the light puddle that you're trying to delete...without a hard crop line it's going to be pretty difficult to get that isolated.
If I were you I'd solve this problem with cropping rather than 'shopping.
