The ESP Guitar Company

Hi everyone! I've been a part of the forum for a LONG time, but not active. I had an Edwards Alexi Laiho back in the day... got rid of it, and I currently own an ESP M-II Standard... I'm returning it because I got a deal for a Caparison Horus... AND I also found this baby on the guitar center website and it should be delivered to my house TODAY! An ESP Horizon. I did as much research as I could and I am leaning towards it being a Custom (early 90's)... but I'm not sure and don't have it yet to actually look it over and research it's serial number. From the pictures, can y'all tell???? THANKS!