I get the feeling either allen was created by the 14th, or is the 14th himself with his time turned back, and he'd given his memories to mana to re inplant themselves into himself
It's more reasonable to guess that 14th's memory were inplanted in Allen, who as a human being (descendant of Noah) already possesed the right genes.
Allen was supposedly abandoned by his parents after birth, because of his left hand. This part is already strange, I mean, if he was born with his innocent, then his mother (when bearing a child) should have contact with it, although this could be just a coincidence or fate (Walker's mother could be a normal human with no knowledge of the innocent's secrets).
Then Mana found him and perhaps implanted in him the 14th's memory. The question is, why he have chosen someone with innocent ? Did he deem it necessary for Allen's and 14th's future ?
Then we have Cross again who says that when Allen came to him (with is already strange because Allen remembers that Cross was the one who found him), he didn't call himself that (so it was probably 14th at that time). At that time, Cross was supposedly in possesion of Tim Campy (who was Neah's creation, if I remember correctly ? BTW. Rero's flying abilities and Ticky's butterfly golems may be based on Tim).
manga. here, she very much looks in between harrowing and cute. maybe more closer to the original than anything because her eyes are still swirly in the pics you attached above and there isn't nearly as much "softness" as she has now. i thought maybe she was cute looking because that was her human form but, no, even when she doesn't have the stigmata on her forehead in earlier renditions, she wasn't nearly as cute then as she is being portrayed now. drawing styles do change slightly over the course of time but softening up the noah, especially rhode and tyki, is very purposeful at this point.
The first and last Road's incarnation
On page before(the first one below), she mentions that all Noahs will be sacrificed by Earl to the God (almost forgot about that ;P), that's why they got more soften (and because they can cry), more human and Hoshino's style got soften in total anyway ;P.
can't road change her appearance? perhaps she wanted to be more pretty for allen? ;D