Hello everyone, I'm new to the task, so I will need every piece of advice anyone can give

I'm starting a Modern Era Female Pilot, I drew a concept of what I have in mind. The helmet is not my own doing, my man Fuo 'ko drew it for me


Life support box on the back, with two hoses running from the front of the helmet, upon the shoulders (or maybe under the arms?).
For the gauntlets I don't have a specific idea, I guess it will develop within time. I'm sure however that I don't want any weapon on them, just buttons...
I don't like rangefinders, nor the mohawk ridge, so I guess I'll have a Blast Shield.
One girth belt and one holster belt.
For the colour scheme I was thinking: light grey for the flight suit, dark grey for flak and neckseal, grey spats and black boots (regular military boots, with front laces covered by the spats). Red (RAL 3001) & white or red&black for the armour pieces, or blue (RAL 5001)... I'm confused about the main colour. I guess I'll continue drawing to clear my mind

The following is a concept of the helmet, but we think it would be too similar to Jango Fett's attire.

Can anyone explain to me this sentence?
<<A wraparound collar or backplate that extends to the wearer’s shoulder blades is required.>> Am I correct if I assume that I just need one single armor piece that covers my back from the waist to the shoulder blades? (I'm Italian and I sometimes need help to grasp the meaning XD)
I'll be delighted to consider any thoughts, ideas or even general feedback from you
Thank you in advance!!
[This is the way]