I am looking forward to physical therapy tomorrow because I really feel that Colin has made some significant improvements since his last visit with the therapist. She had wanted him to continue working on his head/neck control by lots of tummy time, side lying, stabilizing him in a seated position so that he works on holding his head up, and so on.
As you can see in the following pictures, he has really done well with holding his head up. On his tummy, he continues to try and crawl out of the boppy which the pictures begin to show here. By getting himself farther out of the boppy, he then has to lift his head even further.