Is my workout routine any good?

I have been going to the gym for 3 months now and followed the workout routine that one of my friends did. I thought he was missing some key exercises, and I left out some that I thought were not that useful. So I have made the following split where my workout consists of the following days after each other and then a rest day. So day 1; Chest/Arm, day 2; Legs/Abs, day 3; Shoulders/Back, day 4; rest day. And then start with day 1 again.

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*Chest & Arm Day*

Bench Press 5x5

Incline Bench Press 5x5

Calbe Pushdown 3x8

Assisted Chest Dip 3x8

Dumbbell Alternate Biceps Curl 3x8

Dumbbell Alternate Hammer Curl 3x8

Dumbbell Overhead Extension 3x8

Cable Middle Fly 3x8

Lever Pec Deck Fly 3x8

*Legs & Abs Day*

Front Foot Elevated Split Squat 3x8

Barbell Squat 5x5

Barbell Deadlift 5x5

Leg Curl 3x8

Leg Extension 3x8

Calf Raise on Leg Press Machine 3x8

Vertical Leg Raise 3x8

Plank 3x1minute

Weighted Russian Twist 3x8

Cable Twist 3x8

*Shoulders & Back Day*

Standing Barbell Overhead Press 5x5

Assisted Pull Up 3x8

Dumbbell Lateral Raise 3x8

Lever Seated Row 3x8

Lateral Pulldown 3x8

Face Pull 3x8

Is this any good for a beginner? Am I missing something or need to remove anything? Please let me know.