But also on the colours: offspring like the first TB and the third I'd buy, second and fourth: no.
The hair and extra2 colours on the first and third are more similar than on number two and number four. Also, the extra1 colours on these are visible (as dots) against the extra 2 coloured Monarch.
Therefore -in my opinion- the appearance of those two (number 1 & 3) is nicer than on the other two. Hope that helps!