Script and overall vibe - lifeless and strange... My young daughter was bored and didn't even enjoy it.
Acting - everyone seems dull in acting and void of organic facial expressions. Strangely, Ursula's human form seemed to be the only convincing actor. Everyone seems to be chosen for looks over their actual acting skills.
Music - Ariel has a beautiful voice, but most of the other scores either lack from the original or are outright bad. Eric's song made me physically cringe.
CGI - Made by amateurs clearly and just jarring to the senses.