Animations is pretty good for the budged. The blend with 2D and 3D didn't work that well. Since the 3D parts were in a different style. I won't be to harsh. Since the movie was animated by a relatively new animation crew. And the budget wasn't the highest. The fantasy character and environment design is stunning. You can clearly see that there was effort in making it as creative and versatile as they could.
The story was interesting, I didn't expect many of the plot turns. Since this is on Netflix regular TV regulations don't apply. The writers were able to write more wild and unpredictable story. Which in return made the movie even better.
The dub is not bad. I recommend for those who can understand Spanish to watch it in Spanish. Since the English dub is only a voice dub. The character mouths were speaking Spanish while you heard English words come out.
To summarize, I recommend this movie. It's a great choice for the whole family. Don't be to critical for it's flaws. I hope you enjoy it and sorry for the bad English grammar