[name_u]Raven[/name_u] [name_f]Gwyneira[/name_f] is beautiful! If you hadn’t put the pronunciation down for Eiragwyn I would have no idea how to pronounce it. I do think that [name_u]Raven[/name_u] Eiragwyn has a better flow, though.
Here in [name_m]Wales[/name_m], [name_f]Gwyneira[/name_f] is a recognised name whereas I don’t think Eiragwyn is (they both mean white snow either way.) To me this just looks like two names put together like Elliemae.
[name_u]Raven[/name_u] [name_f]Gwyneira[/name_f] is lovely. However the correct pronunciation is [name_u]Gwyn[/name_u]-eye-ruh, with an ‘eye’ sound rather than an ‘air’ sound. I wouldn’t worry too much about that with it being a middle name though.