I came here for the replies since even though I have no issues with 1 foot slalom backwards, my foward 1 foot slalom is not very good.
Coming from a lifetime of ballet, I'd say
single leg calf raises = releve
balance on one foot = anything en pointe with 1 foot (arabesque, attitute, passe, pirouettes etc)
I'm not familiar with the bottom 2, no idea what a doming is.
No issues at all with releve, or balance en pointe, yet foward 1 foot slalom is weak, I do think the issue is the placement of the foot. My coach never gets tired of telling me to stay on my heels and push with my heels for this exercise (did them as warm up for skating class with her today), and I tend to stay on the ball of my feet for everything non en pointe (even walking), and the most hard thing in skating for me is this "stay on your heels" placement.
My coach recommends exercising dorsiflection, flex the foot (opposite of pointing), body weight in the heels of the foot (won't fall backwards if the knees are properly bend). Also when talking to her, she says it;s more about proper placement of foot vs body weight rather than strenght (we who come from ballet have great leg strenght, flexibility, balance etc, but the placement to go forward in skating is different).