I started watching this on a whim, since it was uploaded as Japanese dub with English subtitles, which is how I prefer to watch the kaiju movies. I hadn't seen the first 'Rebirth of Mothra' before this one, so I may have been missing some context for it.
It definitely seemed more of a kids' movie than some of the kaijus I've seen.
I give it major deductions, particularly for its heavy reliance on greenscreens & early-gen CGI, which made for a lot of unbelievable scenes. I was surprised at the amount of blood shown on the shirts of the two human antagonists in one of the later scenes - & even more surprised to see them in the scene immediately following to be wearing perfectly clean shirts!
I give it one star for the studio of the ancient city, which was surprisingly ornate, one star for the explosions & such which they look to have put a lot of work into, & three stars for Moll & Lora. Those two cuties were the stars of the show for me. I wouldn't mind wifing that Sayaka Yamaguchi, to be honest.