What’s your definition of high res? – Photo Mirror Collage Maker Pro Review

I just got the paid version of this app. The foundation of my photography is being able to mirror my images but I also need to blow them up to display in very large spaces. My saved images from your app are drastically reduced when it comes to resolution. What’s the fix for this? I was intrigued because you market high res, high quality but this is not true from what I’ve seen. Please help!!!
Review by L2RBA on Photo Mirror Collage Maker Pro.