I like your taste in cameras - the X-700 was my first camera, back in the day
I totally agree with your comment about shooting film to improve your work overall, it does make a difference.
Going back to your image, there's two separate "bits" going on - the subject matter/composition, and then the exposure/post processing.
Looking only at the exposure/post processing for now - based on the original scan (from your second post), you did a great job with the exposure - do you see how there is white + black + middle grey in the image? That is good, especially since the white isn't glowing/super bright, and the blacks aren't black holes, so to speak. When you (?) post-processed it in Gimp, you took out the middle greys, and by that the whites got too bright and the blacks got too dark - this is what I meant by too much contrast - all of the details got lost.
Now, if you meant to make the image high-contrast as an artistic choice, that is a different matter - I'm just talking about standard, traditional photography. It is after all your image and you should do whatever you like with it