So tough - multiple solutions everywhere.
So hints:
The top left heart is connected to the cat (imagine a string)
The top cat is unhappy
The bottom cat is open mouthed with the 5s in the middle and a symmetrical nose above this
The bottom cat's eyes start (height wise) when the nose stops
The top cat's right whiskers have the 3s on the left
The bottom cat also has bilateral whiskers - the left ones a row lower than the right ones, and the 2-2s slope downwards on either side
So hints:
The top left heart is connected to the cat (imagine a string)
The top cat is unhappy
The bottom cat is open mouthed with the 5s in the middle and a symmetrical nose above this
The bottom cat's eyes start (height wise) when the nose stops
The top cat's right whiskers have the 3s on the left
The bottom cat also has bilateral whiskers - the left ones a row lower than the right ones, and the 2-2s slope downwards on either side