I think its brilliant Amy!

I have a couple of suggestions - feel free to ignore or use as you feel comfortable.

I'd move the sentence about your professional background higher up, after the Acropolis bit and I'd change the tense in that sentence from "provides me" to "has provided me with" to keep tenses all the same. Then all the experience bits are kept together and the more in conclusion sentences are underneath it.

If you are pushed for space, I'd remove the para about your writing, I honestly dont think it adds anything to your app and your whole letter shows your beautiful writing skills and creative thought anyway.

Id also move the "i look forward to the many career opportuniies" down to before the "Thank you very much" sentence - this is a great conclusion and its strong I reckon

Otherwise I think its perfect!!! Well done!