Great screenshot of GTA V! Amazing job as always especially on Venice Beach, you can really feel the SoCal atmosphere.
On the Hollywood Hills picture, you did a great use of the Maxis vanilla buildings, but I think it's a little repetitive, you could have mixed it with some of the mansions from CSX's rewards pack, the Latin Mansions from LBT's residential pack and Mattb325's Texas mansions.
Some of the Mansions in the Hills are not this big (just the price tag), but they coexist with big mammoths that generally belong to business people, politicians and celebs. Those mansions have pools, tennis courts, gardens, patios and they are pretty huge, hence, the use of other files to create some diversity.
Kingofsimcity made a great mod to replace the vanilla mansions. You can see the possibilities, even using the vanilla mansions, to create some diversity, starting with a 2x2, and going up to 4x6 lots. But that's just my opinion, your work is amazing as always and I know the difficulties of working with the LE on a hillside terrain