Great sketches! Love how you drew the twists and turns and stretches, and you use the graphite really well to indicate volume. Great energy in these. I can really feel the model moving, bending, reaching... Watch your proportions: the legs seem short on many of them. Of course, if it's all the same model, maybe she just had short legs. it looks like you had a great model with some great poses, too, which can really help. Post again, have fun in Russia, wish we had Dr. Sketchy's here in DC!