Blog/diary writing for website

We are a leading top luxury model escort agency based in London. We are currently looking for a writer who would be able to supply 5x300/400 words per month for our blog. Each article will target 1-2 keywords out of 20 keywords that are being targeted as a part of the SEO campaign. I will require each blog/diary text to be self-researched innovative and interesting so it can add real value for our customers (beside SEO benefits). Beside blog there will be number of ad hoc projects related to regular updates of the content of the website. Could you please send me your samples using PM. This is an ongoing projects with indefinite time scale. Thanks, Julia