Bingowings said:

It is a bit of an odd way to bump your own ideas but who I am I to talk I used to deliberately wear odd socks in the eighties?

Adding a few new skiffs and maybe a second smaller barge would make the party seem more like a decadent joyride (the palace seems to hold a lot of people some of which may not be important enough to travel with Jabba or might want to show off their own ships). Having more people there could crank up the threat when Luke turns on the Jedi charm.

Though as always it would be a lot of work integrating it into the existing elements in a convincing way.

Regarding the hordes of others that might want to attend, I thought of actually adding a spectator stand, like from the Mos Espa arena. After all, these are public executions and Tatooine isn't the most progressive planet on that front. I'd love to see a crowd cheering on the executions, and then even Luke and co when the tide turns.