I watched the first one to be prepared for the second one.  Wow, the first one was a lot of movies.  It crammed everything into one movie, epic adventure, sci-fi, romance, action, politics.  Maybe the studio was afraid there wouldn't be a sequel. Most of it was probably the director telling Jason Momoa, "Just look handsome and smoldering."  I didn't mind.  😋
The villain was a bit generic, but I liked that it wasn’t one true chosen villain.  Anyone that picked up the fork could be a villain.  So there were a few twists that were enjoyable.
By the way, was Black Manta’s chest CGI’ed?  It was too magnificent.  I couldn’t look away.  😍
The mad scientist was adorable.  Randall Park is a great actor.  I hope he gets more roles in the future.
One thing I had to pick on was, Jason Momoa's suit looked loose.  Did they run out of money on tailoring?