Tramp's not wrong, but you've got nothing to lose by asking the Q&A - it would help to prepare a sample / mockup image to reference so that you aren't showing Earth symbols directly and asking them to fill in the blanks.
Stylizing the symbols a bit to catch the essential energy without blatantly being the exact symbol might help. For example: paint your iron heart in contrast color, and arraying the squares in that contrast color on your chest plates, but omit the lines tying the squares together. That would convey the Iroquois confederacy flag's essential character without being an exact reproduction. Color swaps help too so instead of white on purple it could be orange on blue (or any two colors with sufficient contrast)
The dust fan motif, if disconnected into separate trapezoids arranged in a line - that is the basic idea but it's not really it. Overlapping triangles in different colors is a similar design, and gives you an opportunity to layer and weather paint in interesting ways.
Those who know, will know. And those who don't, will still love your mad graphic design and dope paint job.
I think you should go for it - I can hardly think of a more Mandalorian notion than honoring family & heritage, and remembering who you are beneath the Beskar.
