Hey there, I see no Lhasa in her, but the first breeds that shot at me were Pekingese / Shih Tzu. I myself am owned by a Pekingese (probably TibbieX) and I can definitely see the Peke's wide-set jaw and muzzle and I can see a hint of a few wrinkles. Plus, the higher-set ears and rectangular head shape are both characteristics of the Peke. The eyes, however, are slightly too narrow, which could easily attributed to the Shih Tzu. His quirky underbite screams Pekingese (my dog has the same terrible underbite). Her sway back is a feature that seems to be predominant among Tzus and Pekes, as well, albeit poorly bred ones Do you have a body picture of her? Pekes, even the most non-Peke-y ones, have a distinct "pear shape" where the front end is heavier than the back end. I'm planning to show Pekes so I can definitely help in you this arena

Edit: Here's a pic of my Peke for comparison