Hi Heru,
A few comments on your design:
The man looks like a runner celebrating the end of his run. He seems athletic and I dont see anything in common between him and my audience who are average people searching the net for daily solutions to daily problems. Besides, the picture does not convey why the guy is happy! It needs to somehow convey he is happy because he has found our website, he no longer needs to worry about the dreadful search on the internet and now he can save lots of time by using our website.
Good luck
Joey