Hello wsxcgy! :) Really loving what you're doing so far for most part, except maybe I would personally use 6B27M helmet from RHS:AFRF for most western helmets. The serbian M97 looks oddly wide to me. But hey it's YOUR mod, you do as you feel best.
IF you have any motivation for more camouflage patterns right now, I would suggest you make uniforms with the finnish M62 or M05 pattern
I believe I saw M62 being shown earlier in this post so I'll just jump into M05.
There are plenty of colour schemes used for M05
The ones used by Finnish Defence Forces are only the ones to the left side of the picture (Woodland, cold weather, desert and snow). The lower desert uniform with urban camo are only prototypes as far as I know. ( I would REALLY love to have urban M05 cause no one ever has made it before for arma and it's so pretty). I get this is probably a plenty of work, especially since you have other uniforms to work on. So just throwing this here in case it could possibly catch some interest sometime. Cheers! :)