Sexy set of Lana Kendrick stripping out of red hot lingerie! Definitely a lot of boob goodness going on here but I do find that her boobs look smaller in some of these shots. I assume it depends on the angle etc, its just a little odd when you compare the boobs in pics #5 and #11 for example.
The fluctuation in perceived size is due to perspective distortion from the lens. Pinup Files favors the close up shot with a wide angle lens for a lot of their models because the perspective + barrel distortion makes already large breasts look absolutely huge.