Rob Liefeld does everything bigger and badder, from muscles to jaws to crazy-high projecting mask bits to sound effects. For instance, you can tell that this SPLOOSH onomontoPOWia is so loud it changed both Cable's and Wolverine's left feet into right feet!
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That's some louditude, boys and girls.
Furthermore, I hope you'll note that in classic Liefeld fashion he has rejected the tired, patriarchal color norms, replacing the expected blue of the tons of water falling on these two (from a big water tower in a warehouse, because we all know how important it is to keep your crates well moistened) with a sickly green. The only thing better than fresh water that quenches your thirst is puke green algae water that slaps your feet on backwards!