512x506 Expression, face, happy, mood, smile, smiley, thankyou icon Icon
Smiles drawing. Bright http banner black and white
693x1000 199 Slowking Lineart by lilly gerbil on DeviantArt
For extra practice / self test examples, here are a few other molecules, with their correct SMILES strings.
550x550 Blurred Silhouette of Kawaii Caricature Cute Seal Aquatic Animal