You wanted honesty so here it is. This knife is not for me, I prefer a complete "sleeper" to the "diabolical" looking angular designs. The other problem I have with it is that I swear I've seen so many versions of this basic design already that it really doesn't look unique or special to me in any way.
Keep in mind, I'm not trying to bash your work by any means but I figured you wanted honest opinions no matter if they are supportive of the design or critical of it.
To my eyes it looks like a thousand other Chinese made knives that have flooded the market.
If you are looking for unsolicited advice than I would suggest creating an actual purpose built knife that actually has style and looks good. The type of knife that differentiates your knives and you as a knife maker from the enormous sea of uninspired company and small operation knife makers.
Sorry I couldn't be more supportive. Just seems like you went at the design backwards, what I mean by that is that you first came up with a "cool" design for a knife and then tried to find a "purpose" for it as a form of marketing as well as an excuse for it's existence in the first place.
Thing is, if YOU like the design and you want to make that knife than I fully support your decision and I'm sure it'll be one of the better made knives of this type. It doesn't have to have a purpose to exist other than bringing you, or someone else, joy.
Edit: For example, there are TONS of fantasy knives out there that serve no purpose whatsoever. However, there is a market for them and the proof lies in the fact that there are billions of these Fantasy Knives made all the time. Some people like to do COS Play or they like to pretend to be witches or they just like certain movies and thus they want the "weapons" from said movie, cartoon, play or fairytale. None of these knives are purpose built and there is nothing wrong with that as they serve to please and entertain the people who buy them.
I wouldn't want a Fantasy knife but I don't begrudge anyones desire to own and enjoy one. Not everything has to have a "purpose."