*** Moved from K1 Process & Procedures to the Philippine regional forum, for country-specific input ***
She is not required to bring photos when she goes to the DFA office for Philippine passport appointment. The DFA staff will take a photo of her at the office. They will instruct her on the acceptable facial expression for the passport photo (don't show teeth, make sure ears are not covered, etc).
As for USCIS, wait if/until you get an RFE. Until then, don't worry about it. After your I-129F petition is approved and your fiancee schedules her SLEC medical, make sure she goes to a different photo studio for her visa photo. Have her look for a shop that is familiar with US visa requirements.