Mer, as is rather obvious by the title, is about a girl who discovers a world of mermen that she has no idea exists. This was a quick read; I downloaded and finished it on the same day. One of the first things that struck me was that the characters and plot felt very much like a YA story line. This is not a bad thing, but most of the comics/graphic novels on Netgalley are aimed at the adult audience, and so I wasn't expecting this to be an exception. 
 This also influenced the fact that their were quite a few cliches/tropes in this book and that the plot did feel a little rushed, as if the premise needed more development. At times, the dialogue and actions of the characters felt forced, and the author definitely needs to look over their writing again so it can flow smoothly. 
 I did enjoy the general plot and characters however, and soon after starting, I was invested in the story and hoping everyone would get out safely. The ending, in my opinion, is a little ambiguous, so I'm not sure of there is a sequel or if the story ends like it does. Unlike other reviewers, I didn't mind the art style. I liked the written background on mermaids and sirens and the sketches at the end, outlining the design process involved for illustrating the characters. 
 3.5 stars rounded down 
 Thanks to Netgalley and the publisher for providing a copy of this book in exchange for an honest review.