The bowl looks very nice (model & texture)!
You can cut back on that rendering time by lowering the max depth (min. 2). That would drastically increase your speed (Ms/sec) at the cost of some quality ... as you most likely know. Still I think it's worth the try ... Here are some ideas, if you're interested:
1) Keep the camera in the macro view, BUT add something in it for scale perception (ex.: a spoon, some food / fruits / vegetables, an ant ?, etc.). That would do much better justice to OCTANE features (depth of field, lighting) ! (Make sure the OCTANE logo is visible enough to be easily identifiable).
2) The background should be as simple and unobtrusive as possible (ex.: blurry kitchen hdri ?).
All best and keep up the good work