Your histogram is not equilibrated (blacks and whites are missing). The picture is out of focus (or your exposure time was to long) and the noise level is high.
As Abamo said, noise and focus are the problem.
Hi @Wandrdfull ,
In addition to being out of focus, and noisy, more luminance was needed in the dark shadowy areas to highlight more details/make it not so dark, and there is a double edge to the left of the subject. I assume you were not close enough for your flash to work, hence the need to add this in post-processing.