Let's just say you suffer from a VERY mild type of EC, if we take Daniel miller as extreme because of the types of crusts he was getting.
The moisturiser you used, is it a cream aquaphor type? Your lips doesn't have the shine I would expect if it was. Are your lips red? I know my phone camera distorts the image and reduces the redness in certain types of light.
I have similar lips btw, dark on top and light pink on the bottom lip with darker edges.