Hi
They are really good pics and it is great to see each others chipmunks.
When I first got Lucky she was very shy and would go to bed when we came into the room. After a few weeks of talking to all of them gently and feeding them all monkey nuts. Lucky soon came round and now Lucky is the first one to come and see us and runs straight out to explore the living room.
Chip will come round to you, just have sometime and let Chip come to you.