Hello there!
Although I am not a native speaker, my English is completely fluent, and I have a BA degree in English language and literature. I have done things like these numerous times, and I would gladly do a short sample for you to show you that I am committed and hardworking. Do not hesitate to ask me anything to make sure I'm the right person for this job. I can start today and finish in 3-4 hours.
looking forward to hearing from you,
Tanja