Mowgli looks about 10 years old. His wolf brothers would be mature adults by this time, but are still depicted as youths, and the parent wolves and Akela are still alive when they would have died of old age.
Bhoot is described as an albino, but he has blue eyes. Albinism is a complete lack of pigment, meaning albinos have pink eyes. A white individual with blue eyes (as seen in white tigers) is caused by a partial lack of pigment called leucism.