From left to right:
The Normal Route on Pik Lenin goes along the ridge to the plateau, where C4 is situated (6400m).
The col (lowest point on the image) is Razdelnaya Col at approx. 6000m.
The rounded peak on the right is Pik Razdelnaya (6148m). You can see some climbers heading up the Razdelnaya NW face towards C3 (6050m).