I know this community is kind of dead, but just throwing it out there:

I really liked his work on Journey and Flow. Banner Saga, was okayish.

Instead of going through his entire body of work, I'm wondering if there are any pieces that you recommend as being good and worth checking out.

It's been a while since I played so I might be misremembering but I'm pretty sure he did Tooth and Tail and I'm pretty sure I enjoyed the music there

Last thing I heard from him was The Pathless. Problem there is that the music is created during the game depending on certain states of the game world and the action happening. So listening to it outside of the game is more an approximation than just listening to the tracks like in most other cases.