Your camera perspective was a bit to low and/or you should have had her lower her chin some so we weren't looking up her nostrils.
When light is bounced it becomes an apparently much big light source, which makes for nice soft light and shadow edges. Apparently small light sources, like a hot shoe flash unit pointed directly at the subject, or direct sunlight, make harsh light and sharp edged shadows.
But, there are some issues you have to take into acount, like the color of the surface you are bouncing the light off of, because the light finally reaches your subject will take on the surface color.
Using a 'bounce card' for fill lighting has been mentioned, as has using nearby walls.
Plus you have to consider the total distance (both up and then back down) the bounced light has to travel, because that effects how much power the light has to put out. The further the distance, the more light (power)the flash unit has to put out, the quicker the batteries are drained and the longer the recycle time. The longest recycle time is after a unit has flashed at full power.