Well... you said you want feedback.

The girl has a shitty hair. Is ugly. Too burned and artificial... horribly decolorated.

You should search with really good hair models. For me, that's the point. Better amateur models with a mask, or censorship over the face than common hair.

For example, my new fav hair pornstar is the Milf Ivy Secret... I know, she's american, you're in UK, but is the kind of hair I like. Some other like long... but my focus is the thickness... a heavy mane full of hair... and good enough longness

Ultra thick ponytail!