I really, really like the Sky Rat sets. My favourite gearsets in the game by far, honestly.
Went for an ocean kind of vibe, hence the blue + green tones. You could easily swap out the pants for whatever breeches you like from the actual Sky Rat set, but I liked the way this pair looked when I tried them on a whim.
Ruby Tide weapons aren't necessary, though. Leviathan gear might work better if I'm being honest in that regard.