Now would be another good time to save.Make a new layer, and fill it with white, then place it at the very bottom.If you haven't already, unlink your layers.Next, we are going to flip the second banana layer vertically. So go to Edit>Transform>Flip Vertical .Now, move the reflected banana underneath the main one, get it as close as possible without overlapping.Then select the transparent parts of the layer with the magic wand tool, then go to select>inverse.