Notes from a first colour-season check

My phone camera changes colour quickly, so I want a more careful undertone comparison. My camera keeps adjusting the image before I can compare anything fairly. I am choosing soft daylight and avoiding bright lamps for the first test. I intend to leave off filters, flash, portrait mode, and beauty adjustments. I am considering a neutral card in the photo so the light has a visible reference. Repeating the test in similar light seems safer than trusting a single photograph. A simple [url=https://color-type.top]skin undertone test camera[/url] might be a useful checklist before I compare the photographs side by side. There are obvious limits to comparing colour through a camera and screen. I want to review the photographs slowly before assigning a warm or cool label. Do you lock exposure, use a neutral reference, or simply compare several sessions? I am hoping to keep the process accessible and repeatable. A second session should help me see whether the apparent tone is truly stable. I would appreciate lessons learned from a real home setup.