Wash all produce thoroughly. If using regular cucumbers, consider peeling them if the skin is thick or waxed. For a decorative touch, run a fork down the sides of the cucumber before slicing.
Slice cucumbers to approximately 1/8-inch thickness. Halve the cherry tomatoes and thinly slice the red onion.
In a medium bowl, whisk together the vinegar, olive oil, lemon juice, honey (if using), salt, pepper, minced garlic, and half of the herbs.
Add the cucumber, tomato, and onion slices to a large bowl. Pour the marinade over the vegetables and gently toss to coat evenly.
Cover and refrigerate for at least 30 minutes, though 2-4 hours will yield the most flavorful results.
Just before serving, drain excess liquid if desired. Add remaining fresh herbs, toss gently, and taste for seasoning—adding more salt, pepper, or a splash of vinegar if needed.