Thanks.
That's a very nice coin. I was avoiding the 3D finish as I assumed it would bump up costs, but it is very nice.
The buckets are negotiable - I have options I can switch out - with the concept trooper I was just going for something not commonly seen but yet visually distinct. Yes, I'm an OTTK as well, but the difference between a ANH stunt and Hero / ROTJ / ROTK or even HWT would be lost at that scale in the final production - so it would be a repeat of the front, more or less.
I wouldn't mix the two tone metal (bringing in gold) with the coloured paints (unless you meant gold-coloured paint) - you would lose the effect of the different metals and the paints might look funny - I could change the front XV to gold but I would probably do the whole coin in black metal and gold or... nickel and gold/bronze with some black accent paint. If I got away from the EIB DLT-19 I would probably drop the Centurion laurels as well on the back.
Here is an earlier version I did with the larger XV in two-tone metal (raised and recessed antique bronze with raised and recessed antique nickel and black paint). This is inspired by the ten year FISD coin but no large TK bucket.