I'm a student learning English and recently came across the United Kingdom's declaration of war on Japan, which ends with:
I have the honour to be, with high consideration,
Sir,
Your obedient servant,
Winston S. Churchill
I'm impressed by the polite style of that declaration and want to occasionally use this closing in my emails, but I'm female. My gut tells me that because of my gender, this closing might look somewhat awkward in my letters --- similarly to how mistress would be more appropriate than master if used to refer to a woman.
My question: How should I adapt the above letter closing in view of being female?
UPDATE: To clarify, I intend to use this closing in emails of the following kind:
Dear Mr. Smith,
Just humbly letting you know that I haven't yet received the advance payment for my translation services requested by you. I understand that you are extremely busy as a business owner navigating through the storm of the current pandemic and might have overlooked the matter --- we are all humans and accidentally forget about one thing or another. I just humbly beg your understanding that since we are located in different jurisdictions, and I am an undergraduate student who has to pay her rent and bills, I cannot hit the ground running to do the job you kindly chose me to do unless I receive the advance payment. Given the deadline by which you need my translations, I beg your urgent attention to the matter.
I have the honor to be, with high consideration,
Sir,
Your obedient servant,
Mitsuko XXXXXXXX