Ah, modern art - never quite what you want it to be.
To make the colour orange, you need to mix a red liquid with a yellow liquid.
The garden; assuming you left it upside down, the liquid you seek won't be far.
The honey dripping from the beehive is what we need.
Of course not - we need a container to catch the drips of honey.
Check the queen's chambers for a bowl, or something similar. ?
Take the goblet from the small table.
The goblet on its own isn't enough to reach the honey; we need a handle to help us reach a little further.
The gallery; our makeshift handle-to-be is currently holding something up.
Take the 'stake' from the barrier on the left side of the lower area.
Firstly, combine the 'stake' with the goblet to act as a reach extender.
Next, peep into the garden and use the contraption on the dripping honey.
That's the 'yellow' taken care of; all we need now is the red.