That's something we are looking into. We think that there will be different optimal image formats depending upon the use case (i.e., are you sharing an illustration or a photo). We want to see what those use cases are before optimizing.
Otherwise: Congratulations. From my day to day 'support the in-laws' sessions: This could be very helpful.
We wanted to soft launch something now to start getting feedback about the product. We'll be doing a formal launch in the next couple of weeks and will have a lot more detail to share about us and the company then.