Photo App to print postcard to local printer

A user uses their phone to take pictures or selfies. They then select a postcard (template layout) and add images to the postcard (crop / zoom / rotate them). Once finished adding the photos to the postcard, they can then print the postcard at a local printer by scanning a QR code. It prints the postcard on the local printer whilst a copy of the original photos and postcard is transferred to the local machine. There is more to this project and we are wanting to find a talented developer to work with our team on this project and we will supply a full technical brief after a DNA has been signed. In your quote: 1/ Please give us a brief outline of how you would code this app and the systems you would use. We need an App to work on OS & Andriod, plus software to run on local machine to collect the images and that is connected to the printer to print the postcards. So you need to briefly explain how you would do it, not just "I can do it!". 2/ Give some samples of Apps/work that you have created before similar to the above 3/ An idea of how much you would charge for 1 day of work and an idea of how many days you think it would take to make & test the app like the one above. 4/ Tell us your favourite food.. just so we know you have read the brief in full... plus it would be nice to know! Haha.