The client emphasized the need for a tree-based design. I chose to use a beer bottle silhouette combined with an oak tree design (inverted to create a photo-negative effect). The oak tree is a design I've worked with before (but not previously sold) and was drawn in Photoshop, heavily filtered, then vectorized in Illustrator.
Since this isn't specifically a bottle logo (more a brewery logo) it seemed relevant to include a bottle rather than the more traditional hops+wheat style designs.