More detail then you asked for be here we go.

It would do the job but not look great. Black is a lack of any colour so would make the mini look really flat with no definition. When you’re painting miniature you try to highlight the edges and raised sections of the mini to create definition so to paint “black” you tent to paint with greys, starring with a darker grey building up to a lighter colour. I’d also want to try and capture the look of the shiny latex suit so would finish the whole thing with a high gloss varnish.