Like I said, unless you counted the pores on the lower mandible, it's difficult to confirm one way or another.
I'm certainly no expert in fish ID...however, two things have me thinking its a Pike, and not a cross.
Google "juvenile Northern Pike images"...all kinds of examples with that exact colour pattern. I've caught many myself with that colouration in lakes that the nearest Musky was more than 200 km away.
Second, I had a cottage on Wahsoune Island right in the middle of Massassauga PP for several years. Never saw a Tiger, never heard of one....but I did catch young Pike that looked exactly like that. I may be wrong, but for whatever reason Pike and Musky just don't seem to hybridize in Georgian Bay.
Although not always the case, Tigers (and pure Muskies) typically have darker stripes on a lighter background. In the Kawarthas you will see olive coloured Tigers, but its a dark stripe on light. The photo is a typical mature Tiger (49") from NW Ontario's Eagle Lake this past September....big head, rounded fins...Tiger traits vs Musky.
If you want confirmation, find Gord Pyzer on Facebook. Gord knows his toothy critters.