The ballroom makes sense.
As to the gold? Certainly on-brand. Tacky as heck, but what the common man, in his day, used to imagine how rich people were surrounded.
If women are expected to attend rose garden events, I can see the practical merit to the courtyard, though that really means it is no longer a “garden”.
I wouldn’t call grass a garden. The horticulture surrounds what is now grass and what will become paving suitable for entertainment and high heels. I love that Trump is personally interested. “He admires the bucolic vista from the veranda off the Oval Office and has taken a keen interest in the groundskeeping work of the National Park Service.”