the last two pic looks purple to me too leh ahaha. Maybe diff people diff colour perspective:think:. Well i do have that problem before, when shooting a purple orchid indoor in dim light. the orchid turn out blue i mean reallie blue not like yours. What i did is to adjust the WB (thou the backgrd may no be your desire). Next i shot 1 more shot with my desire backgrd colour and blend them tgt. Its troublesome, but i'm noob ahaha and there may be some better n easier way, btw if u reallie have the passion, you wont mind xtra steps. just my 2cents:sweatsm:
Or you can shoot RAW and process it to 2 different WB tones and export to different files. And merge them back together using layer masking. I think that would be a lot easier.