Wicked is based on the first book of The Wicked Trilogy by Jennifer L Armentrout, it's a YA paranormal romance set in New Orleans. We get fantasy characters like the FAE.
I've been a fan of the author for years, this is not the best series I love others way more but is very good and would always recommend reading the whole series.
This is the first PNR movie done by Passionflix under Taryn O'Neill's direction and I must say she did a very good job, the screenplay adaptation was good, trying to fit a book into a 2 hour movie is always challenging, yes it's just the first book and the other ones are also optioned to be produced in the near future.
As for the cast they did a good job, the CGI was not overdone, and was pretty accurate for what I imagined while reading the books. I was afraid of the results from this, as it was the first time Passionflix used CGI in their movies, which is a good thing, as they opened the possibilitiy for more books in this genre to be adapted in the future. However, the action scenes do need improvement, if you haven't read the books you might get a bkt lost of what is haopening, so yes, I think they should considered a bit more background information at the beginning, overall I liked it and will be waiting for the next ones.