Who is the woman in the fur coat (and hats) in DEATH IN THE HARBOUR?

Ryga was growing more intrigued. He didn’t have time now to think through the implications of this. He needed information. ‘Describe her,’ he said - (edited so as not to spoil the story for you)!
‘She spoke with an accent?’ Ryga asked, noting down what Collier was saying.
‘No, posh, but she looked like a foreigner. By that I mean she had a dark complexion, not suntanned, a bit swarthy. French maybe, or Spanish, or could have been Italian, but then again she could have come from Brighton for all I know. One thing I do know, though, is that she had unusual eyes – bright blue with dark circles around the blue. It made them stand out. And she smelt nice.’
‘How nice?’ Eva asked.
Collier’s cigarette stayed perched in the corner of his mouth unlit. ‘Like . . . I don’t know, soft.’
‘Describe her coat.’
‘I said it was fur.’ He looked at Eva as though she was deaf or stupid.
‘Brown? Black? Grey? Long? Short?’ she pushed. ‘You don’t see many fur coats in here, Mr Collier. You must have noticed it, an astute man like yourself.’
He looked momentarily stunned at the compliment, which Eva had probably intended cynically, but after a moment he melted. ‘Brown, glossy, short. It swung round after she walked out.’
‘A swagger coat then,’ Eva directed at Ryga. ‘Over trousers? A skirt?’ she addressed Collier.
‘Skirt, black, matching her stockings, nice pair of legs and a tight skirt too because I thought how can she walk in it and those heels? Like I said, a nice party.’

Why the hats? Again no spoilers but here’s a taster

‘And the last time you saw her?’ Eva prompted.
‘A funny kind of thing – looked like straw but wasn’t, and it had a knot and a feather sticking out of the top. No veil.’

DEATH IN THE HARBOUR is available in paperback, as an ebook, on Amazon Kindle and as an audio book