Thank you all for your recommendations! I apologize for the incredibly late response.... somehow I did not get notifications for your replies, and eventually I just forgot about my post. It's strange though - I could have sworn that I checked this thread for responses for several days after posting, and never saw any responses. Well anyway - time for an update on this recital!
My recital is next Saturday - October 15. I'll have it recorded and post it to my channel in the coming weeks. This is the program (three out of the six pieces from my original draft remain):
Sonata in D Major... Mateo Albéniz
Prelude in G Major, Op. 32, No. 5... Sergey Rachmaninoff
Chaconne, BWV 1004... Johann Sebastian Bach (transc. Ferruccio Busoni)
from Violin Partita in D Minor
Gran Sonata No. 3... Nicolás Ledesma
III. Tema con Variaciones
Lullaby ("Dies Irae")... Timothy Williams
El Pelele: Escena Goyesca... Enrique Granados
I took out the Country Gardens because it didn't really work as an opening piece - it could only work as the last piece, or an encore. I had the Granados for finale, and didn't want to do an encore. Brian and Fred are right - the Grainger just doesn't really work as an opening piece. I replaced it with the much easier (though still tricky in its own way) Sonata in D by M. Albéniz. That's kind of a common sense opener I figure.
In terms of the Chaconne, I decided to place it before intermission on the advice of my older brother (a professional classical guitarist - and his name is John Williams, quite the name for a classical guitarist haha) who said that the Chaconne is so deep and profound that you don't want to leave your audience with it as the final piece. The audience needs something "lighter" to go home with.
I replaced the flashy but also graceful Danza Española No. 9 with the even flashier El Pelele. That was probably the worst programming decision I made in all of this, but there's no going back now LOL. El Pelele is, from a purely technical standpoint, the most difficult piece I've ever played - it's MUCH harder than it sounds. Of course, much of that depends on ones personal technical weaknesses - I could definitely see someone pulling it off with relative ease but struggling the Chaconne, for example. To be honest, I'm a little nervous about the prospect of performing El Pelele, but I'm still confident that I can pull off a rendition that is, if not really excellent, at least respectable.
The Lullaby (composed by my father) was kind of a last minute addition that I added just about six weeks ago (before that, I was planning on just doing Ledesma and Granados for the second half). It's uses the Dies Irae theme, but places it in F major, in 6/8 time. Since I've already written waaay too much, I'll save what's left to explain about the Lullaby and the other pieces for when I put the recital on YouTube.
Anyway, sorry for not really taking you guys' advice into consideration - I just didn't see it!