You covered the lightsaber, and a solid colored actual flightsuit is a great choice for your base layer. Beyond that, I think your concept is viable, and I personally really dig the blue (Tramp and I are both biased that way). There's not really any big unsolvable problems left over. I have two points that probably need a little re-configuration for CRL compliance (with some of my thoughts for you to consider), and one item that is mostly personal opinion.
One point to clarify is that the belt(s) in the illustration appear to be over the ab plate, which is against the CRLs. The armor plates shouldn't be covered by the waist items - check the portion covering Soft Parts for clarification, there's some options with how the vest and your waist items work. You need to have at least two waist items from the list.
Modern nylon tactical type gear will need modification, but can be made to work. MOLLE strapping is a general no-go so I wouldn't use anything that has it, you basically have to destroy the MOLLE-ness which defeats the purpose of using it in the first place. If you use old school leather or canvas surplus pouches, I think that'll be more in line with the mainstream swarzy aesthetic.
Second, your illustration does not make it clear that there's a vest between the plates and the flightsuit - the intent could be that it's the same fabric and pattern as the flight suit, which is 100% ok. You will still need to have a vest, and generally speaking your torso plates (for Modern: chest, ab, collar, diamond, back, shoulders) are mounted to the vest. I suggest side closures for ease of on/off and adjustability.
Personally, I think the layers read better and a kit looks better overall if there is a clear difference between flight suit and vest - either through color, texture/weave/material, or both. Example - a tan flightsuit with a brown vest, or a black flightsuit with a black leather vest - both will read as separate layers and both would look good because light strikes differently, and the same color of space grime shows differently on the different color/material.
Your plates are Modern / Fett style, so having that sleeveless overcoat or cloak layer is within the CRLs (not sure if it's a duster, or a cape like a ruana: dusters are ok for Modern, but not Post Imperial; cloaks/capes/ponchos would be fine for either). It's a cool silhouette, and the apparent camo-like pattern would be a way to bring in a reference to your personal history, while meeting the regulations (custom or in-universe camo is allowed, but will be heavily scrutinized). I'm not sure about the fur for my personal taste, seems like it would get uncomfortably hot. There's on-screen precedent for fur mantles and it doesn't appear to violate any rules so I say go for it if you want it - it certainly looks like a trophy or other point of pride, which really helps bring a character to life.
I hope that's actually helpful, and not just "more". You are 100% correct that there's a lot of rules and regulations governing the pretend spacedude armor club, and it can be tough to make sense of it all. The CRLs are a living document that's developed in fits and starts over time, so there's naturally a lot of twists and turns to be found. Keep asking questions and working to get your vision crystallized. Once you do have things lined up, start with your soft kit; fit it to your body and fit your plates to those foundation layers.
