There are several ways to answer this question. Part of it is because of his 'Mercury Poisoning', and it shows through his hair, skin, eyes, ect. Part of it just emphasizes the fact that Tarrant is a 'living Mood Ring'. And...because Tim 伯顿 is awesome, and in Underland, anything is possible. =D
posted 一年多以前
an 小时 以前 and i read an 文章 an it 说 when he saw every one in his famil died i ripped him apart and that is why he does it