In the same way as with Wayde, after a few seconds, Adam was able to see through Angela's disguise illusion. Adam had underestimated how much focus and how draining and restricting it would be.
He would need to constantly focus on providing the Disguising Illusion Stone with Internal Energy and although it was only a small amount, it would use a few IESP every hour, which over many hours would be quite draining.
Not only would it weaken him and require his focus, but it also needed to keep constant contact with him.
Adam was able to easily adapt and was confident that he would be able to sustain the disguise illusion for as long as he needed to, but when he looked at Wayde and Angela he felt slightly dishearted and they didn't seem to be struggling in the slightest.
Angela previously had long golden-blonde hair that was silky and let out. Matched with her endlessly blue eyes, perfect skin and alluring figure, she was overall a top-tier beauty.