Starting sketch ^^
Finished product ^^
From right to left we have: Antonio, Darius, Gabriella and Ataro (yes I spell her name with a heart, it's her signature) Antonio and Darius are twins and Ataro is the youngest.
PS: Darius is tanned because of some confusion with his father.
The same thing happened to Gabriella, who is the only one with an Egyptian counterpart. This is because her traits come from her father's (Yami) side. So when in Egypt she's tanned and has a different name.