Company video intro and end video, about 4 seconds each

I need a intro video that will be placed in the beginning of my marketing videos. It will be a dynamic intro (4 seconds) and an ending video (4 seconds). The end video can be similar to the intro but slightly different. Te end video should feel like an ending. I want both videos to stay within the same theme. I have a logo for the company that will be used in the intro as the ending image within the video or incorporated into it. I have provided a sample for viewing. Video will need to be provided in a format(s), so I can use it in a variety of ways. The theme is luxury real estate related. Something classy and sophisticated is wanted. No cartoon like feel. Professional for high end luxury real estate. You can use some images of luxury real estate if needed, but you must create an overall feel of luxury and sophistication. My audience is the high end.