You can ask for the theme of the story that I will write next. But I can't guarantee the next story will be good. Currently, there are two themes ordered by my friend. I'll write it down. Slowly. At least once a week.
To translate to english. I pay special attention. I will do my best.
I would be interested in hearing anything you decide to write. Something which demonstrates life and culture in your country would be interesting to me.
If you want any tips improving your English, please ask. For example, consider changing "there are two themes ordered by my friend" to "there are two themes requested by my friend". To order means to demand, sometimes forcefully. Another good word to use would be "suggested". It's not a huge difference, but it is an improvement. Keep up the good work!