Found Ginger Ruby Rose on Adultwork:
External Link/Members Only.
Only a couple of reviews there and none here that I could see, so I thought I would TOFTT.
Location: Commercial Street, near Spitalfields
Cost: £120 for 30 minutes, cum once
Comms: Same day meet, easy comms by text. Her text messages were a bit odd, lots of small ones coming through very quickly like pre-typed, canned responses
Description: Definitely the girl in the profile; slim, good looking with a good pair of bolt-ons, Brazilian, with very little English
Services: Covered blowjob, then sex on top. No shower offered or asked for
A curious one. Thought I was taking a bit of a risk of a bait-and-switch, particularly with her cut-and-paste texts, but she was the real deal as in her profile. Didn't speak much English at all and my Portuguese runs out after two or three words. We managed a bit of communications limping along in Spanish. Didn't think of trying Google Translate - am not sure how well it would cope with our rather specialised vocabulary ... !
She definitely saw half an hour as a quick pump-and-dump so kit off, on the bed (flat was OK but nothing special) and to work. Covered blowjob and then her on top, riding like a champ. Her technique was good enough but it all felt a bit soulless due to the language barrier.
I was in-and-out in about the half hour paid for but in action for a bit less than fifteen minutes tops.
My Neutral rating might be seen as being a little bit harsh but, ultimately, an enjoyable but fairly forgettable experience.