The general rule of thumb is that if you cna show a complete 360 degree detail reference from OFFICIAL sources, and those references are cohesive, then the character is approvable (pending dark side eligibility, ofc).
Those references need to show a majority of the same details, parts, and colors. I say majority because comics are often not cohesive from panel to panel, much less issue to issue. So, you take all the references you can find, and bunch together those that are similar, and that is your reference pool. Even if you can show different parts being majority similar, it still works (the majority of boot references might not match the majority of armor references, and so forth).