hi im new here, not new to snakes but new to boa's owen 3 snakes (tho on has scaped out the smallest of holes half the size of its head

)
cali king
cremsicle x amel corn
miami phase corn (missing)
and now a boa
im after help with finding out what boa i have
im told its a redtail, but all the pics ive seen sont resemble my snake, apart from a long thin marking across its head between its
as far as i can see from markings and colour, the marking are very simuler apart from mine has longer saddles and red markings all the way down
pics are crappy but could some one tell me what sub species it is, hog island,redtail , other?
cheers