I never thought so. Looking at the pictures and trailers, everything in it looked fake and poorly constructed rather than an actual living, breathing world. It was early days, but Twilight Town had little to no improvements, and it wouldn't surprise me if the announcement trailer featured the Twilight Town from Kingdom Hearts 2 with a new coat of paint on it. I never found the Destiny Islands part to be impressive either. It fell flat for me in terms of design since it didn't look or feel like "Kingdom Hearts", and it certainly didn't look like a Pixar movie.luminous looks like a pixar movie
There's only one video game out there I've ever seen that's been constantly compared to a Pixar movie and it doesn't feature a boy with his duck and dog, but rather a robot and a Lombax named Ratchet.
I'm sure it would have been improved over time during development, but considering how hard Luminous is to work with and how vastly different each world is, we would probably be really far out from Kingdom Hearts 3 rather than being close like we are now.