Ok a little context might help here. Indigo is maybe the 7th purple CyberAgent I've come up with, it's possibly my favourite colour in LDD, and goes amazingly well with both black and gold.
Indigo is the tallest of the CyberAgent2.0 designs, I've added the group shot to illustrate this. Not including wings, he stands about 1-1.5 bricks taller than the CyberAgent2.0 basic design. This was achieved by adding to all the joints, and adding an extra 2x1 plate at shin level.
The armour and shoulder designs are unchanged (largely) from Silver, however I've added some plates and slopes in the gap under the chest and arms, I think it gives it a more solid appearance.
The head design is still largely the same one as the Black/Gold/Zero/Silver design, but I've replaced the cheese with a rounded slope. I think it adds a little character to the design.
The Backpack/sword is an idea I had a very long time ago for a computer game concept. I'll not go into full detail, but the main character had a weapon I called a "WingBlade". The idea was that he had this large sword that split into a pair of wings that he wore on his back to fly.
While this design isn't exactly what I wanted to achieve, it's as close as I can get with the hinges available in LDD.
I'm about 75% happy with how it turned out, mostly because the weapon doesn't feel particularly balanced. It probably needs a longer shaft.
I mostly wanted at least one design that could achieve flight without a pair of angel-like wings. This is more like a powered glider by comparison.