Wrists
Level 1. Wrist push-ups, flexions and extensions.
Gradually progress leverage towards a full push-up position.
Level 5. Bodyweight supported flexions and extensions.
Ankles and toes
Level 1. Kneeling squats with the toes flexed.
Level 2. Kneeling squats with the toes extended.
Shoulders
Level 1. Two arm hang progressing to weighted or explosive
Level 2. Rear support / 3 position smith curls
Level 3. Skin the cat progress to vertical.
Level 4. Single arm hang
Level 5. Ring in-locate