Shouldn't be that bothered by the guy accusing you of being someone's alt, he's just so deep up his own ass that he can't comprehend that there's more than a single person here that dares to disagree with his tastes, and sockpuppets seem to be a concept he's already very familiar with for......reasons......
Thanks for sharing your commissions though, always feels wasteful to me that some people will pay a professional artist for something they think the worlds need to have more off........ just to then keep it to themselves........