[spoiler] I've completed the level but am still missing about 30 figments and two pieces of luggage. I've seen the luggage behind some golden gates, but don't know how to get to them! Any assistance would be appreciated.

I'll give you a hint:

You have to cleverly use one of your psychic powers...

Also
Buy all the paintings... and use a certain psychic power to see what you can do with them

I got through the level except I didn't get one figment!! one!! I couldn't find it and I gave up, so I just went right to the end of the game. Looking forward to playing the game again with 100% of stuff collected.

I figured it out. Thanks for the tips! I'm still missing three figments but I'm just going to move on.