Hey! I am Katerina and I am a native Czech speaker. I have good knowledge of writing stories because I used to do it as well. I started with fan fiction and then I continued to giving feedback to other writers.
I am passionate about writing, so I think I could help you a lot. As well, I have a big knowledge of Czech, Slovak and Polish culture (I grew up near to borders, in the city called Ostrava - the third biggest in Czech!)
I am doing translations from English and Dutch and I speak Spanish so if you need any of those languages I could help you!
I love writing books and that you are from abroad and you want to have a Czech character is interesting for me.
Currently, I am studying in Australia, so I have plenty of time. I would be up for Skype call, to help you with the pronunciation. Just let me know, I am very curious about your book plot!
Cheers,
Katerina