The set up

This Jaquette organization scientist is about to test a new mix of the A-tap formula on subject 47. Ankles locked in place as well as the wrists cuffed. All cuffs held in place by very strong cables that allow for some freedom of motion to her limbs to accommodate her soon to be size increase. The A-tap formula is all pumped up into the back of the mask just waiting for a press of a button to open the entry points currently closed off. The mask was designed to have the mouth padded so no grinding of teeth happens or swallowing of the tongue but still allowing breathing through the mouth. This however makes it impossible to speak with garbled nonsense only coming out. A necessary trade off for safety of course.
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So this will be the set up for the growth series. I am willing to take feedback into consideration before i officially start this growth sequence.
Questions
Should her skin turn a sickly green the bigger she gets or stay the same skin color?
Any ideas to improve or things to change?