It seems that it's just hard to paint perfect skin tones, and it's not just the custom guys who are hand painting, but HT too. It's weird with HT because they did make some good Caucasian skin tones years back (T1000, Aldo, Landa, etc.) but now they seem to make everything too dark. Iminime was making a lot of characters a touch too dark and people voiced out about it. Now they trying to lighten everything up and snow people feel like it's too pasty. I think what it comes down is it's hard to make a believable balance. Personally I rather have my light skinned Caucasian characters like Corleone be pasty than tanned.
Pesci looks decent there. Pesci does have a darker skin tone than that but what I'm more concerned about is the greenish eyes when they should be brown