@theluthier Thanks for your feedback. I agree with what you said, the shading was a bit confusing for me with this sword. Especially the red parts, I had no idea what kind of material should it be. But I feel that I failed with lighting in the final render. I didn’t really want to make it pure-diffuse although I know it could be a stylistic choice, especially for a sword from an anime.
Here’s a screenshot taken from a different camera angle:

Also, now I know I should put more effort in time management, this is a skill that’s much more important than I thought. I need to get rid of a habit of creating things in long sessions, which are at the end mentally exhausting and lead to frustration and lack of motivation. I guess I had to experience it by myself to realize that.