From left to right
1. Royal Purple
2. Lavender
3. Pearl Gray
4. Buff Dundotte - female
5. Buff Dundotte - male
The other three pictures I assume are of the same 3 keets.
Left - Lavender Middle - Buff (possibly female) Right - Lite Blue (?) but if it is the same keet as the one on the bottom in the third picture, it looks like it is either a Lite Lavender or a Brown in the third picture.