Well now... just to play Devil's Advocate... To me it doesn't really look like a prosthetic however, if you used say... glycerin instead of silicone, advantage much more close to skin less lines visible etc, it would melt as they tend to do under heat from stage lighting. Or heat from maybe wearing a mask and blowing your own breath up. That said I would expect to see either a line from the prosthetic or make up smudge on mask... The mask does look a bit off too though why so sharp when the hair is blurry...
Well now... just to play Devil's Advocate... To me it doesn't really look like a prosthetic however, if you used say... glycerin instead of silicone, advantage much more close to skin less lines visible etc, it would melt as they tend to do under heat from stage lighting. Or heat from maybe wearing a mask and blowing your own breath up. That said I would expect to see either a line from the prosthetic or make up smudge on mask... The mask does look a bit off too though why so sharp when the hair is blurry...