For my front end code I chose re-frame. I started with om then switched to reagent and finally settled on re-frame. Om.next looks really interesting though. The whole graphql/relay idea is definitely were things are headed.
For my DB access I also started with HoneySql and recently switched to HugSQl which was inspired by HoneySql and is definitely worth a look.
One observation I have is the lack of tests in your project but you probably already know that. As you say, it's still a work in progress. I've done a little bit of testing and chose Jay Fields expectations library which I really like. I too need to write lots more tests .
Perhaps other, more experienced Clojure developers can offer more constructive criticism then me but in the meantime I wish you good luck with the rest of your project.