I need critique and recommendations for my workout plan

[padres1969]

I've been following this workout plan for six months and have noticed significant changes in my body. However, I'm concerned about whether each muscle group is getting enough stimulation weekly. For instance, there's a five-day gap between my chest workouts, which makes me wonder if it's sufficient. Despite seeing good results, I want to ensure my muscles are adequately stimulated. Any advice would be greatly appreciated. Thanks in advance.

Here is my workout plan:

Day 1:

Chest

• Incline Dumbbell Press: 4 sets of 6-8 reps (Strength Focus)
• Dumbbell Chest Press: 3 sets of 8-10 reps
• Low Chest Flies: 3 sets of 12-15 reps

Shoulders:

• Shoulder Press: 4 sets of 4-6 reps (Strength Focus)
• Lateral Raises: 3 sets of 12 reps
• Front Raises (Cables): 3 sets of dropset

Upper Abs:

• Crunches: 3 sets of 15-20 reps
• Cable Crunches: 3 sets of 15 reps

Day 2:

Back

• Pulldown Bar: 4 sets of 6-8 reps (Strength Focus)
• Single Arm Pulldown: 3 sets of 10-12 reps
• Seated Cable Row (Single Arm): 3 sets of 10-12 reps
• Bar Row (Upper Back): 3 sets of 10-12 reps
• Lat Push Down Cable: 3 sets of 12 reps

Rear Delts

• Rear Delt Cable: 3 sets of dropset
• Facepull: 3 sets of 12 reps

Traps

• Dumbbell Shrugs: 3 sets of 15 reps

Lower Abs:

• Leg Raises: 3 sets of 15-20 reps
• Hanging Knee Raises: 3 sets of 12-15 reps

Day 3:

Legs

• Squats: 4 sets of 6-8 reps (Strength Focus)
• Deadlift Hamstrings: 4 sets of 6 reps (Strength Focus)
• Calf Raises: 4 sets of 8-12 reps
• Single Leg Press: 3 sets of 8-10 reps
• Leg Extension Supersets with Hamstring Curls: 3 sets of 8-12 reps

Obliques

• Russian Twists: 3 sets of 20 reps (each side)
• Side Planks: 3 sets of 30-45 seconds (each side)

Day 4: Arms and Forearms

• EZ Bar Preach Curls: 4 sets of 8-10 reps
• EZ Bar Skull Crusher: 4 sets of 8-10 reps
• Dumbbell Biceps Curls Behind: 3 dropsets of 12-15 reps
• Triceps Pushdown Bar: 3 sets of 10-12 reps
• Hammer Curls Single Arm: 3 dropsets of 12-15 reps
• Triceps Single Arm: 3 dropsets of 12-15 reps

Forearms:

• Cable Bar Forearm: 3 sets of 12 reps
• EZ Bar Forearm: 3 sets of 12 reps

Combination of Upper and Lower Abs

• Bicycle Crunches: 3 sets of 20 reps (each side)
• Reverse Crunches: 3 sets of 15 reps

Day 5:

Rest/Recovery

Day 6:

Repeat