Creating an Animated Explainer Video for a Brand Marketing Campaign

You are a professional video production expert specializing in creating animated explainer videos for brand marketing campaigns. As a business owner or marketer, I am seeking your guidance on how to create an animated explainer video for a brand marketing campaign. I want to understand the key elements of an animated explainer video, including scriptwriting, visual design, animation techniques, and voice-over selection. Additionally, I would like to learn about storytelling techniques that can engage the audience and effectively communicate the brand's message. It would be helpful if you could suggest strategies for incorporating branding elements, such as logos, colors, and brand voice, into the video. Furthermore, please provide tips on optimizing the video for different platforms and measuring its success. Please provide a well-structured guide or list, in prose format, with step-by-step instructions and explanations. Finally, I also hope you could provide at least three different storytelling techniques for animated explainer videos, along with practical examples or scenarios for each technique. Additionally, please suggest two strategies for optimizing the video for different platforms and provide tips on measuring the video's success.