Looking for a design solution that reflects the high-end and personal aspect of your business I have found that combining hand-drawn illustration and classic typography creates a beautiful, modern solution that works well for a landscape construction company with experience. Color palette is based on blue & aqua hues, as you suggested in the brief is elegant and sincere. To make it easier for you, I have mocked up, what your logo might look like in use on a business card as well as an alternate version (W in the circle) for use in places like web avatars that require a square logo.