i tried warm color on and offAs stated above, SOOC jpegs (with no cropping) or better yet the RAWs would make troubleshooting much easier. It's always best to provide more information in the beginning.
Olympus has a setting: "auto WB: keep warm color " My bet is that this is turned on for you.
i tried all optionSince it looks like you were using Auto White Balance in them then the moon is going to look fairly colourless & the low light portrait using Auto WB, depending on the lighting isn't going to be a cool looking colour cast, especially if you haven't got Anti-Flicker on under artificial light. If you had taken a series of sequential frames you may notice a difference in WB for each. If you want to get a different appearance for low light then having Anti-Flicker ON to sync with your mains frequency would ensure a consistent light level & colour & then select the desired WB to suit. Remember LED lighting can appear slightly different in colour output through its AC cycle supply (caused with ripple on the DC power to the LEDs typically at double the mains frequency). I believe Keep Warm On only applies to Auto WB anyhow.