Beginner Fugue Subject question

Hi guys.

I am trying to learn the rules of fugue and counterpoint and this would be my first attempt on such piece.

I derive from rock music so as far as classical pieces and general music theory goes, I am a beginner, trying to gather bits and pieces of knowledge from various sources.

I have gone through the crash course in fugue writing and the counterpoint threads here and I would like to try writing something of my own using the rules that I can find here.

I was wondering if I could write a subject for a fugue based on a few chords from an existing piece of music and develop it further into a rock electric guitar piece.

What I am trying to tackle are a few chords from Schubert's Doppelganger.

Ideally I would like the fugue to be an introduction and the main Doppelganger theme would be revealed in the electric guitar part.

I tried writing a simple subject but after reading all the dos and don'ts and how one can get stuck if the subject is inappropriate I would like to ask for your advice.

The two potential variations of a subject and the Doppelganger chords are attached. I would appreciate it if you could share some of your knowledge and tell me if the subject would or would not work.

I am not necessarily aiming at a perfect baroque fugue (due to the target audience not necessarily being music literate) but would like to follow the general rules. The end result, if succesful, in a few months would be shown to animation students who hopefully would like me to cooperate with them, making music for their animation projects.

Any advice on the subject, notation, phrasing and ( anything else :) ) highly appreciated

One thing you could do in addition to this is listen to some bands who have already worked some classical styles into their music. I know Symphony X, for one, did a little bit of that in New Mythology but I'm not sure if they touched on fugal. Try to do a little research in that direction as well.

I know Symphony X, for one, did a little bit of that in New Mythology

Thank you J.T. Hanrahan, I'll check it out.

Also, I did some more research and found out that Schubert has also done a fugue incorporating the theme that appears in Doppelganger. It was in his Mass in E flat, Agnus Dei. So I'll have a look at that as well :)