Hi Prabhat,Just a further update to the points you raised.
Regarding Squash and Stretch, Autodesk is going to release the new standard for motion editing including Squash & Stretch. iClone will update with this new Autodesk motion editing standard in the future.
For your second point on Toon Rendering, We'll try to improve Toon render quality in the future. Right now though, you can check “Alpha Threshold” under Hair Material Settings to clear the unwanted lines of the hair. For eyelash, you can just remove it.
Thanks again for all your feedback.