To give us an idea of the overall feeling of your brand, let us know which styles you lean towards
1) The logo has to look good in both Color and B/W versions.
2) Has to convey the idea of "luxury", "elegance",
3) The word "Avant" means (according to (http://www.merriam-webster.com), culturally or stylistically advanced. So the logo has to convey that idea/concept.