Photo Blending

I use lasso tool to choose the part that I want which is the mouth of a lion than I copy it then I paste it in the apple. I use polygonal lasso tool and choose the mouth only ( to make it neater) and the click inverse then cut it.I made the mouth smaller and put it in the right place. I use eraser tool and made the opacity 50% and make the brush smaller and make the edgy side of the mouth not edgy anymore. After that I use color balance to change the color of the tongue and the teeth.(I think)