Front Cover Title Change

So far my front cover looks like this:

I decided to use some other designs and get my target audience to choose which of the titles they like the most.

 This is the original style I've used on my front cover. 3/10 people said they preferred this to the other two titles.

This style has simply changed the title colour to
green. 5/10 people I asked said that they preferred this style of the three titles.

Finally, this style has changed the positioning of the word 'Later'; plus the sub head is not on top of the title. 2/10 people said that this is the title style they preferred.

This is my front cover now. I believe that it looks better now as there is a better balance in that ratio of green and white.