I am not the author of the illustration, but what is wrong with it?
I understand that you could do better, but you say "not so good".
This is why I am asking this question.
I do not say that I disagree with you. Actually, I am agree with you.
Out of context, I think that the illustration is funny and similar to a cover of a Sims video game, but the people on the illustration should not use smartphones and tablets, because the mobile application is already available. I think that laptops or PCs would be more fit for the illustration.