Few of the great creators have bland personalities. They are cantankerous egotists, the kind of men who are unwelcome in the modern corporation.
Every advertisement is part of the long term investment in the personality of the brand.
You now have to decide what 'image' you want for your brand. Image means personality. Products, like people, have personalities, and they can make or break them in the market place.
Making the logo twice the size is often a good thing to do, because most advertisements are deficient in brand identification. Showing the clients' faces is also a better stratagem than it may sound, because the public is more interested in personalities than in corporations. Some clients can be projected as human symbols of their own products.