The look is natural and empathises on baby like skin with a strong usage of blush to look drunk/hungover~ The skin should be flawless so cover up any blemishes and dark circles if you have them.
As for blush it's applied in the centre of the face, right under your eyes in a inverted triangle shape. Be careful to not apply too much otherwise you will actually look sick and hungover. xD
Please give a Igari makeup a try! I didn't expect to love it as much until I got curious and gave it go~ ^^