Blotches on my cast iron pan I am seeing blotches on my cast iron pan.

Are these just water stains after the pan has been dried by heating on the stove top? Or do I need to season my pan more?
Honestly, it looks to me like oil that hasn't fully dried/burnt. If you put it on a hot hob whilst dry for a couple of minutes it'll be easy to check. If it blackens, you're fine