hi guys

just wanted some help with my programme and maybe some workout tips

i am 22 yrs old
around about 6'4 and am about 240 pounds or 110 kgs

i train 4 times per week and would train more if not for work

i like to split up my week into body parts and prefer to do quick sessions due to time constraints usually between 35-45 mins

here is my work out
day 1 chest:

flat bench press 3 warm up sets usually between 10-15 reps
2 x 6 reps
1 x 4 reps

inc. bench
2 x 6 reps

dec bench
2 x 6 reps

day 2 back:

bent ova row 3 warmups 10-15
2 x 6
1 x 4

seated row
2 x 6

lat pull downs
2 x 6

day 3 shoulders and traps:

DB press 3 warmups 10-15
1 x 10
1 x 8
1 x 6

lateral raises
2 x 8

upright rows
2 x 8

BB shrugs
1 x 6
1 x 4

day 4 bi and tri
same warmups

biceps
BB curl
1 x 8
2 x 6

DB curl
2 x 6

concentrations
2 x 8

triceps
push downs
1 x 10
1 x 8
1 x 6

close grip bench
2 x 6

overhead extensions
2 x 6

please someone critique my workout please
i wanna increase size and strength

i dont feel like i am doing enough reps and sets but the bloke writing my programme says its enough????

please help