No, it's not the raucous laugh of her early years, but those corners of her mouth are definitely upturned.
The Sun
She was overbearing and grasping and silly, but she had a wonderfully raucous laugh and a keen sense of malignant fun.
Times, Sunday Times
This brought a raucous laugh.
Times, Sunday Times
He gives a raucous laugh at that notion.
Times, Sunday Times
His friends knew him as a 'huge joker' with a raucous laugh.
Times, Sunday Times