Tracy.. the blurry master cylinder aka brake fluid holder picture. Tough to see, but it looks like the fluid is in between the full and low marks. This would be considered normal. If you were leaking much brake fluid...as mentioned, you'd have warning lights and a pile up.
I'm all for inspection, however I still think that waiting a week to post a possible brake or axle issue is too long.
And my gut tell me you'll find nothing (which is good) and merely need to clean this wheel like the other before taking the picture next time.