The next progressive stage of Deity worship is the addition of Gaura-Nitai Deities. Once Gaura-Nitai Deities take residence, you should change the position of the Pancha Tattva picture, which should no longer be specifically worshipped. Their Lordships Gaura-Nitai are now given the most prominent place on the altar.
Gaura-Nitai Deities require an increased level of worship, above those made to a Srila Prabhupada murti. Ideally, the level of worship offered to Gaura-Nitai should include waking the Deities, bathing and dressing, offering bhoga, with arati and kirtana at least once a day, and preferably twice daily. If possible, try to include an offering at lunch time, with a dhupa-arati, then put the Deities to rest. After the evening arati, put the Deities to rest for the night.
"So far as taking care of the Deities and your family simultaneously, you have to do both mutually, but the main importance is Deity worship. Just like a busy housewife always busy in household affairs, yet still she is engaged in dressing herself nicely, combing her hair, etc. So both things go together.
Yes, at least once daily the Deity's clothes must be changed, in the morning. If the Deities are small, as they appear to be from the photograph, then they can be laid down in a bed at night. And they can be given nightgowns to wear before taking rest. That is nice. If there is time and facility then these things can be implemented. So far as bathing is concerned, it requires two hands and one tongue. In your left hand be ringing a bell and simultaneously with your right hand pour water. Chant Hare Krishna, Cintamani, Govinda Jaya Jaya, etc., like that."
Srila Prabhupada Letter, 05-01-71,