There are quite a few versions of Escaflowne 
releases. The ONLY one that has ALL the footage 
is called the Sale Version. This not only has all 
the extra footage, but cast interviews as well. 
Here's a list of the added stuff that was not 
included in the rental version (the rental is 
what most people own)

The Vision of Escaflowne Sell (Sale) Version

Each volume includes 2 episodes as broadcasted on 
Japanese television and the following special 
video supplements: 

Special long versions of episode 1-4 and 6-7 in 
Vision.1 through Vision.6 with unbroadcasted 
scenes including: 

Opening animation (episode 1) 
Yukari and Amano just before Hitomi's first run 
(ep. 1) 
Placard-style ending credits (ep. 1) 
Hitomi's mom after being told by Yukari and Amano 
about Hitomi's disappearance (ep. 2) 
Balgus discussing Folken with his three samurai 
(ep. 2) 
Hitomi wondering why she was placed in the front 
audience of Van's coronation ceremony (ep.2) 
the external laser transceiver for Vione's 
communicator shooting its beam (ep.3) 
a Dragon Slayer finding a passage to Allen's 
Castelo fort and Dilandau ordering her troops to 
use it (ep.4) 
Hitomi's 0000 scene (ep.6) 
The Mole Man's comments (ep.7) 

Image music clip video collection in Vision.7 

Kurabu (Club) Escaflowne cast interviews (Host: 
Tomokazu Seki, Guests: Maaya Sakamoto, Mayumi 
Iizuka, and Johji Nakata) in Vision.8 

Kurabu (Club) Escaflowne cast interviews (Host: 
Tomokazu Seki, Guests: Shin'ichiroh Miki, Ikue 
Ohtani, and Minami Takayama) in Vision.9 

Kurabu (Club) Escaflowne staff interviews (Host: 
Mayumi Iizuka, Guests: Kimitoshi Yamane, Hiroshi 
Ohsaka, Hirotoshi Sano) in Vision.10 

Kurabu (Club) Escaflowne staff interviews (Host: 
Mayumi Iizuka, Guests: Kimitoshi Yamane, Hiroshi 
Ohsaka, Hirotoshi Sano) in Vision.11 

Kurabu (Club) Escaflowne staff interviews (Host: 
Mayumi Iizuka, Guests: Shouji Kawamori, Kazuki 
Akane) and talk (Maaya Sakamoto, Hiroki Wada) in 
Vision.12 

Kurabu (Club) Escaflowne staff interviews (Host: 
Mayumi Iizuka, Guests: Shouji Kawamori, Kazuki 
Akane), talk (Maaya Sakamoto, Hiroki Wada), and 
credit-less ending in Vision.13 

Anyway, since your cel is from after episode 7, 
and that seems to be where the edited footage 
ends, it looks like it may just have been cut out 
all together. Or it could be from the scene right 
before Hitomi gets kidnapped. Merle sees this 
happen then Van has to go save her. They end up 
flying off and landing in the forest somewhere. 
Am I getting this right? Shoot, it's been a while 
and I'm at work right now so I can't confirm. 
Alright no more procrastinating, time to earn the 
big bucks. 

-Megan
(PS I got all the above information STRAIGHT off 
of the site called Escaflowne Compendium. It's a 
really great site. All Esca fans should check it 
out. http://www.anime.net/escaflowne/)