Looks great! I printed 4 of these just in black before I managed to get a colour change to work on my A1 without an AMS. In the end I just had to add a pause in the slicer at the right layer and unload and load the filament using the printer itself. Next step is to change the filament change g code to just do a pause, which should also load the right settings for the new filament after the switch.
The model is great, I'll be printing a few more of these!