Is that a flea collar? may I advise you dont use one as the chemicals are highly toxic and can cause intense irritation on the kneck, and if ingested can be deadly to a cat. Use regular flea treatments like frontine or revolution (never over the counter stuff-again very bad) my cat had bad reaction to some, luckily I caught it before he suffered permenat damage! Website
Now onto the picture
That is a very cute cat, I only have two sugestions, get more on an eye level and crop it portrait orientation so there is more focus on the cat and less on the empty space around it. Nice picture!
I think regular flea powder is pretty harmless. What is it like 98% baking powder? Of just use straight baking powder - that'll kill the little buggers.
The stuff you get from a veterinary surgeon is much better. Little capsules that you snip the end off and then squeeze the liquid/gel onto the skin at the nape of the neck.