Just watched the movie (you really don't have to wait until August 5th, a
simple pirating site would do), and this is a surprising good animated film, The art direction and the animation are superb, and there is a lot of story told within this film (I like how this film is 90 minutes than a stereotypical 70-80 for an animated film, so it does not feel rushed).
The star of the show, Mavka is such a good female character compared to all the garbage female characters in the recent Western animated films: friendly, caring, loving, and easy-on-the-eyes (also reminds of the sprite from
Fantasia 2000). The main male protagonist Lucas is kinda dumb (stereotypical romantic chemistry) but he's bearable and at least the film does makes him somewhat intelligent and necessary to the plot. Hush is a funny and bearable character.
I do have some criticisms of the film, such as the fight scenes and the "fire tornado" in the end of the film looking a bit ridiculous, and the villain's storyline ending abruptly until the post-credits scene, and though I was already thinking about some improvements to the film, I think
Mavka is still a good animated film compared to other Western animated films, maybe a bit better than
Across the Spider-verse (due to being less messy) but not as good as the second
Puss in Boots.