I enjoyed the multimedia principle that you focused on in the blog post, also tied into your multimedia video. Within your blog post, it all connected to one coherent thought. Using the coherence principle to highlight what you are trying to communicate. As well, in your screencasting video, showcasing only the TikTok website and its functions allowed the learner to focus on the content. Utilizing the embodiment principle as to not distract the viewer.
One aspect that might beneficial to look into, is including multimedia content in the text-based part of your blog. Combining words and pictures might help deepen the understanding of the reader, connected to the multimedia principle. You do a great job at explaining the reasons behind a lesson plan, going forward that can be accented with an exemplified image.
Your blog seems to have a nice clear layout, and I look forward to reading more!