ok thanks, and I have got one more question for this:
"and must be included on your application's website homepage linking to http://www.esenthel.com after clicking on it"
I will have only application's website on google play and will be ok if I have there link to: http://www.esenthel.com/ and in addition Esenthel Engine logo in screen shots, because I think that there it is no possible to have a logo (in google app website) which after clicking on it, it will redirect to: http://www.esenthel.com/
I think that there is only possible to have short description and some screenshots and short movie.
So generally I will have screenshot in google play app's website and link to Esenthel Engine -> will be ok?

Hi,

On Google Play App page you don't need to have logo linking to http://www.esenthel.com/ after clicking on it.

Are you close to release of your game?

Yes it has been finished. As I've said it is very simple app (basic calculator) which has been created to see how it's work (releasing app on google play). The app will be for free.