If it were me I would be careful about pushing the ISO so high. It's nice to see the camera can do it without noise getting out of hand but with the exception of the last two shots all others are a bit over exposed. Notice the inconsistant color of the church interior from shot to shot. #5 (vertical) is probably the closest to reality. High lights of the stained glass and doorway are blown out and I'll bet the histogram confirms this. I have shot many many pictures in many churches so setting a custom white balance and getting consistant exposure is key.