Didn't get the tail number but I flew ORD-HEL on Friday and I think it was one of the new ones. It had the Marimekko pattern on the fuselage. The seat in C was not as I remembered it but I don't know if it was really an improvement. When stretched out flat, the leg space goes into a tunnel. I'm only 1m75 and I wouldn't exactly say it was spacious. Plus, there's precious little storage space at the seat.
I'm glad I have OWE through BA, though, because at ORD Finnair wanted to send me to the Swissport lounge.