Love the idea but poor photos are grainy and not clearly visible

If it werent for the poor quality of the photos (after using this app) and if you could see the photos, then I would give this 5 stars. Please, please make the photos larger and have a higher resolution. This would be great if you could fix this issue. It would make an awesome photo gift if you could have it printed as a 5 x 7 or larger.
Anyhow, I sent to different collages I made for 2 friends and both of them said they loved it but couldnt see the images very clearly in the photo because they were grainy and so small (embarrassing). If you fix this I will be a super happy customer.

Cydvicious64 about Shape Collage