Pic 1 - Brookie - Square tailPic 2 - Splake - Forked tailPic 3 - Hard to tell without seeing the tail - going with Brookie
Splake have spots and patterning on their cheeks and gill plate, while brook trout do not have such patterning (very smooth looking).
Number1: NiceNumber2: NiceNumber3: NiceThanks for sharing!