YSS looks quite pretty in the "horse" photoshoot--her lips and nose look a bit more delicate. Especially the last 2, I can sort of get a RYY vibe from them! ^_^ She has yet to prove her acting though (or that she can look that pretty onscreen, not just in photoshopped pics).
Actually I *can* see some small similarities between YM and YSS...of course I think YM is a lot prettier and acts better too, but I mean at least there is some basis for comparison there (add on the fact that they are the leads of Gong 1 & 2 respectively, plus were in the same class, so it's no wonder reporters like to make a story of it).
Sorry to go off-topic but just to clarify this...
TY's "official" stated DOB is 1986, but seems like most people question the accuracy of this--I actually came across rumours of TY "falsifying" her age quite awhile ago. At first I thought they were just made-up rumours too (I have read similar rumours about other actresses like LSS and LYF etc. but those seem blatantly false...in fact these "fake age" rumours seem to surround every actress at some point! Well, except for the child actresses like YM and SC who appeared onscreen at like age 4 so can't debate that).
However, then someone posted an old newspaper article from the 2004 Olympics, with a pic of TY as one of the girls chosen to play "er hu" as part of the closing ceremonies (to represent Beijing--actually I found it quite impressive that she knows how to play er hu and also got picked by Zhang Yimou to go to the Olympics!). Anyways, in that article (the scan looked pretty legit) it states her age as 20 (i.e. she would be born in 1983). So either she faked her age back in 2004 (saying she was older than she was), or she faked her age recently (saying she's younger). People also point out the fact that she is part of the class of 2002 at Central Academy. This would make perfect sense time-wise if she were born in 1983...but means that if she was born in Dec. 1986, she would've gone to university at age 15 (not impossible but gotta admit, less likely).
At any rate, falsifying ages is nothing new in the entertainment industry...and as Whitetofu points out, Tang Yan definitely looks young enough to pull it off! She looks the same age as her good buddies YM and LSS, and in fact she can pull off looking like a teenager in some pics...so if she is actually 28, good for her!