Which poster is best for Walkers mental health campaign?

Hi I am a student for Arden University and I would like some feedback based on the 4 designs to see which is the best for the mental health message with the campaign for Walkers. See below the challenge:

What’s the challenge?

Use the power of humour to break the “I’m fine” autopilot response during world mental health day on 10th October. Develop a campaign that lives through social media and has the ability to gain traction to reach a wide array of audiences that showcases humour’s ability to empower the nation to open up.

Crisps can’t change the world but the reach of the Walkers brand can help people to change a moment and bring some levity and enjoyment to their day. They are keen to use their brand to champion positivity and mental wellness in a way that is truly Walkers. Using humour to make people think that ‘it’s fine not to be fine’; feel that its ok to open up, and break the ‘I’m fine’ autopilot response.