Greetings Rak,
You are obviously a busy man so I thought leaving you a letter would allow you to consider my proposal at your own leisure. The Last Stand is a fine establishment and I have enjoyed every single moment I've spent within it. It is always possible, however, to make improvements and I have noticed that the corridors of the third floor and some of the rooms have fairly bare walls.
I would like to volunteer my talents to replace many sections of gray wall within the Stand with pieces of art that would surely please the eyes and minds of all of your customers. I am, by far, not a professional and thus I am not interested in any compensation. You will also not need to worry about materials and supplies as I shall see to those myself.
Take your time to consider this. Once you have reached a decision, you can simply leave a message for me in your fine establishment.
Best regards and a beautiful day to you, Senestia Avarscanti