Bubble aeration animation

What is wrong with this depiction?

1. bubbles that touch never join (coalesce),
2. bubble reaching surface simply breaks; real bubbles may persist in gas phase as foam,
3. depiction is good in that bubble expands as hydrostatic pressure decreases, but shear may rip a bubble into smaller bubbles,
4. depiction is good in that motion is somewhat random; actually it depends on mixing; there is some spiral motion due to Coriolis forces from Earth's rotation,
5. these bubbles only rise; with good mixing, a bubble can go up or down before eventually reaching surface.
6. depiction is good in that bubbles are not all rising at same rate, but until mixing is intense, fluid elements are larger than a few small bubbles. Chances are that adjacent bubbles are moving more or less together instead of completely independently as shown in this sketch,
7. no sparger is shown; the bubbles are coming from somewhere and are not just evenly distributed along the bottom,
8. real vessels have much more head space above the liquid to accommodate foam.