Sunken temples after cheek filler, how can I fix my overall look? (Photos)

The ultimate question would be which look are you aiming for?
Looks like your cheekbones were enhanced. While some may prefer to have obvious cheekbones but many may not appreciate the perceived increased concavities above (temples) and below (under the cheekbone). This can lead to more of a "peanut" facial outline.
Both areas can be easily filled, as long as it is performed by one of the many competent injectors in Toronto. Being in Canada, you will have a much broader choice of materials to choose from. Choosing a competent injector is important, especially in the temple area. There is a potential but very rare risk of permanent blindness, depending on your injector's technique.
In some cultures, a widened face is not desirable. If that's the case, then I would recommend removing your cheekbone fillers and seek a consultant that has a sense of beauty that is aligned with yours.
There is no one right answer as everyone, including injectors, have different senses or standards of beauty.

Thank you for the question. From your photo, it looks like you have enough volume or you are overly corrected with the filler in the cheeks area. Your temple is nice and does not need volume. I suggest thread lift for the midface to soften the nasolabial lines and shift some of the volume back. Which will give your cheeks more natural look! . Good luck.