Double Fugue in E-flat major

So, after one long, sleepless night of nonstop composing, springtime inspiration has blossomed into what I would consider to be potentially one of my best pieces to date. The 2nd subject and its exposition actually were originally part of a totally different, unfinished fugue in F minor, and as such its thematic relevance isn't as prominent as that of the main subject, though significant in certain passages nontheless.

Enjoy!

YouTube video link: 

Nice work, which I forgot to listen to.
For this type of work I like the harpsichord sound better.
The initial theme or subject is quite “catchy”. I think the second theme comes in at measure 32?
I was pleasantly surprised by the “cadenza arpeggiata”, I think it also has a role of a more rested section. And it sounds chromatic.

When talking about Double Fugue, I understand that there are two subjects. I suppose you can work by exposing them separately, or sequentially.
Is it also possible to then overlay one on top of the other?

Best regards.