File Size - pro is 850 and the basic is 798. The extra size comes from 3rd person UE , demo maps, demo folder, UE water with a bit of custom settings. All of them are for demonstration reasons, though I do have the animations and retargeting of the mannequin in those folders, plus some times I add extra meshes and goodies. For this case : basic version has 4 poses I added, they are the once used for demo map 1 and can be seen on the screenshot and renders for the UE marketplace.

Textures - the original textures that are in 8k are available for download from the link provided in the demo map 1 in the Pro version. The Basic gets the downscaled version of the textures of the Pro, the downscale is by 2 - 8k:2 = 4k ; 2k:2 =1k textures. Though the textures are very well made and I would say in most cases you wont need the HQ textures, though if you plan to do a lot of close ups or for people who want to scale the meshes beyond their intended size the HQ will be greatly appreciated.

Meshes - the pro comes with extra static meshes : hair, hair 2 (ponytail ) and helmet. The Basic and Pro share the rest - pedestal, weapon and shield.

Skeleton Meshes - both use different skeleton meshes, but both use the UE mannequin skeleton. Difference is in the additions of facial bones and  ik bones for the face, additional bones for future compatibility with my other packs ( Colossals v1 has armor bones for the pants section, those are present here too)

Animations - only the pro comes with animations generally speaking, the Basic version comes with 4 animation poses of which 3 are static and one is moving. The moving one is the one seen in the videos, where the statue looks at you and shushes with a finger then looks on it`s side and turns back to resting position.

Support - both will get support and both will get more compatibility in the near future, more results in that area - hopefully by the end of February.