J. Lee Graham

Welcome!

I respect that you were trying to create the same kind of atmosphere as Bach's Toccata and Fugue in D minor, and I think you have succeeded to some extent.

To call something a fugue when you know it not to be one is a misleading, though, and not a good policy. You could call it anything else you might want ("Fantasia in G minor" might work), but a fugue is a very specific and special thing, and people have reasonably strict expectations of anything with that name. Let the music speak for itself, but be careful about names, especially those referring to specific forms.