If its "barely a fall" then surface tension should make it stick to the rocks beneath...
Either that or it should come away a bit before curving sharply down.
Honestly, though I've never seen a stream come away from its..."perch" like that without continuously curving downward to a steeper, if not 90 degree, angle. Your water seems like it's just...unaffected by earthly gravity.
As Eck's edit also fixes, the streams continuation should be just beneath the waterfalls' start anyway. Yours looks like it's offset upwards.