One thing that stands out to me is Goku's eyes. They're so sharp and intense, and the fact that they match the color of Gomah’s Evil Third Eye feels way too intentional to be a coincidence. His fur looks amazing too, and the magenta color gives it a nice balance, making him look even more intimidating. His body language makes it seem like he's completely at home in this form, like he’s tapping into his inner nature through magic, which is such an important theme in the series.
A lot of people didn’t like the big hands, but I actually did. They make him look more like a monkey and really highlight his raw power. The hand gesture he made right after climbing the rock, in particular, stood out to me.
What I love the most, though, is how this transformation actually feels like a natural evolution of Super Saiyajin 3, unlike the original or god forms. That shot of Goku smiling, for example, looks like it was lifted straight from the manga covers, especially those from the Majin Boo arc. It helps unify the different transformations and visually ties Daima closer to the original Dragon Ball manga.
