How long until you switch it to your secondary/bottling? If you're carful with your siphon, you should be fine. I can't tell whether it's mold or not. More information would help.
It did recently stop bubbling but it never foamed up that high. It's a white cream color no brown or black spots. It's a JAOM so i hadn't planned on racking into a secondary but if you think it will save the mead then I will.
It's probably yeast culture. I would leave it alone, with a JAOM you just need to put this in a dark warm place and come back 3 months later. Don't worry the JAOM will not steer you wrong as long as you followed directions.