Critique or Confirm my Training

Please let me know your thoughts on anything I can change, add or subtract from my training regimen.

Monday:
-20 minute incline treadmill walk. Keeping HR anywhere from 110 to 120 bpm.
-10 minute PHA circuit. 5 exercises for 3 circuits with :45 to 1:00 rest between circuits.
-Heavy Arms. Bi, Tri, Shoulder exercise performed back to back to back and repeated for 3 total circuits. Hit 8-12 reps with the goal to fail anywhere in this range and hitting 3-4 effective reps.
-Abs

Tuesday:
-Incline treadmill walk for 10:00 warm up
-Weighted sled conditioning for 10:00
-Legs. Hitting reps of 12-15 with the goal to fail in that rep range and hit 3-4 effective reps.
-Abs

Wednesday: Off

Thursday:
-20 minute incline treadmill walk. Keeping HR anywhere from 110 to 120 bpm.
-10 minute PHA circuit. 5 exercises for 3 circuits with :45 to 1:00 rest between circuits.
-Chest. Two exercises for each head of the chest (lower, mid, upper) with rep ranges of 10-15 and the goal of hitting failure in this rep range. 3-4 effective reps per set.
-Back. Four exercises targeting all parts of the back. Using Effective Reps method of:
-12 reps trying to fail around the 12th rep
-Resting 15 seconds, repping out until failure (usually 4-6 reps if done right).
-Repeating until I hit 20 reps total.
-Abs

Friday:
-20 minute incline treadmill walk. Keeping HR anywhere from 110 to 120 bpm.
-Volume arms. Hitting Bi’s, Tri’s, Shoulders. 3 rounds of 9 exercises per muscle. Rep ranges 20 down to 12 as the rounds progress.
-Abs

Saturday:
-Incline treadmill walk for 10:00 warm up
-Explosion PHA training for 10:00
-Back x 3 exercises performed in a circuit. Rep ranges 12-15 with the goal to fail in those rep ranges.
-Chest. Using Effective Reps method of:
-12 reps trying to fail around the 12th rep
-Resting 15 seconds, repping out until failure (usually 4-6 reps if done right).
-Repeating until I hit 20 reps total.
-Legs-Heavy BB squats in rep ranges 5-8. Lunges, RDL, etc.
-Abs

Tough to critique at all without knowledge of your specific goals my friend.
It looks fun I guess?

What is PHA that you refer to?
What exercises are you doing specifically for each muscle group?

Training history, injury history and training budget (how much time you are able to train etc.)

These things will all help the gurus on here to give you valuable feedback