The bow sheer requires correction, the number of hull scuttles and their position need correction.
As Warra was an `improved tribal the aft funnel height will require lowering if the kit has not this mod already done, other modes include the midship gum platform, ship fast motor boats plus a gallows mainmast to name a few.
Your post would indicate you are planning a build of her in disruptive scheme, this means your build will be between commission late Nov 42 to approx. late April/early May 43. After that date she went to G10 overall.
Late 43/early 44, exact date unknown, her colour changed to RAN Chicago blue overall, a number of changes to her RDF outfit also changed late 43 including her pennant number.
Disruptive patterns were completely different port and strbd and were almost identical but not 100% the same as Arunta, the scheme comprised 2 colours only.
Whilst Arunta was commissioned in 507A and C that may not be the case for Warra. Whilst evidence exists that those colours were still used within the RN past mid 42 I have seen no evidence to prove that the 507 series was continued within the RAN past mid 42. I do not speak of AFO`s, CAFO`s but direct RAN documentation supporting the continuance of those colours within the RAN, whilst still under Admiralty the RAN was a sovereign navy a long way from the UK and did a number of things different to the RN.
It is possible but unproven that Warra may have been commissioned in MS colours, those colours likely to have been MS2 and MS4.
MS4A was a very pale light grey and monochrome images present a tone inconsistent with what could be expected for those camo swatches painted thus.
A number of colours within the RAN MS series were different to the RN series, those colours were MS3, MS4 and unique RAN colour MS3B, all had a khaki hue, no colour samples exist.
Having stated this I totally expect to hear about it if my information is incorrect.
May I suggest a good starting point for your reference is :
a search of Warramunga will produce a number of good images for you to refer to.
The timeframe is important for accuracy.
All the best