For starters, I love Hailey Bailey and I think she is a great actress, however this movie did not give her the justice she deserved.
This new remake of the Little Mermaid seems empty, lacking of any real creativity and mostly just odd- looking versions of Flounder and Sebastian. The way they included the fish and creatures of the sea just felt very uncomfortable and they looked very odd and unsettling.
The music wasn't good either; In Part Of Your World there are a lot of artistic liberties done to the song, including a lot of unnecessary build-up and awkward pausing spots, same thing for Poor Unfortunate Souls except the singing sounded like it was being pushed out of her throat.
The story itself had the idea of the original but with all the creative decisions it takes awake from the overall atmosphere of the story. That being said scuttle wasn't liked at all, however personally I kind of liked the Scuttlebutt song because of the beats.
So overall, wouldn't recommend this movie for the faults seen in the CGI, music, and storyline. If you really want to show your child a movie with good plot, interesting music and loveable characters I would watch Tangled, maybe Princess and the Frog if they are older can handle something more mature.