I'm 22 and have been lifting for about 3 1/2 years now. I've been doing this workout for about a year:

Monday:
Superset 1: Incline dumbbell press 15 reps, then immediately Seated pec dec fly 15 reps, 60 sec. rest and repeat one more time

Superset 2: Dumbbell lateral raise 15 reps, then immediately Reverse pec dec fly 15 reps, 60 sec. rest and repeat one more time

Superset 3: Lat pulldown 15 reps, then immediately Seated row 15 reps, 60 sec. rest and repeat one more time

Wed:
Superset 1: Dumbell bicep curl 15 reps, then immediately Dumbbell tricep kickback 15 reps, 60 sec. rest and repeat two more times

Superset 2: Rope tricep pulldown 15 reps, then immediately Rope Hammer Curl 15 reps, 60 sec. rest and repeat two more times

Fri: Lift heavy various things pecs, biceps, tri's etc. typically two sets with more rest in between and various leg exercises, to kind of mix it up from supersets

I also do hanging leg raises on M/W/F and some other ab workouts

Also I typically do 15-30 min. of cardio before each workout and typically do some sort of cardio on at least one non-workout day. I eat very well (lots of fruit and chicken, not really anything bad for me) and also take protein powder after lifting. I have always been pretty skinny, and the workout routine has helped me get bigger somewhat, but I have been disappointed the results have not been any better for having been doing this routine for a whole year. So I'm looking for any suggestions and critiques to my workout or diet. I'd like to see my abs better and have some more definition in my arms. Any advice would be amazing. I'll put some pic links below where I'm at now......

http://farm3.static.flickr.com/2400/...017b26.jpg?v=0

http://farm4.static.flickr.com/3113/...9edc54.jpg?v=0

That routine is bad. Read the weight-training 101 sticky. Also, go to the nutrition forum and read the nutrition 101 sticky. I say this because many people say their diet is good because they eat chicken and fruit, but a good diet is more complex than that.

if you want to get bigger,why are you doing 15reps and why supersets
as said above read the workout threads or IMO do a fullbody workout 3x awk using mostly compounds.
who showed you that routine its crap have a word with him.