My Morphed Photos are Pixelated...

Hi,
I used really large photo files (like 3 MB and up) to morph 3 or 4 images and they still turned out very pixelated...blocks are very visible. What am I doing wrong?
Thanks!
I used really large photo files (like 3 MB and up) to morph 3 or 4 images and they still turned out very pixelated...blocks are very visible. What am I doing wrong?
Thanks!