The biggest thing for me with ML is finding images that work. But one of the biggest things that can help you ML lens is playing with the blend mode! As of writing this I'm waiting for Snap to reapprove my Mosaic Lens so I'm hoping you will be able to see the new version when reading this. Below is my ML lens straight from the ONNX file as well as a picture of after when I changed the blend mode! In my lens it allows for the ML to be toned down and take in other colors to the mosaic pattern. So make sure to play around with the modes and see how it changes the lens!