A little more advice- You said you're trying to bulk up- You should be lifting heavier. Ten reps per set is pretty high, perhaps you could try a weight that you can only do six to eight reps with- A lot of people here use the Max OT program, which has you doing only four to six reps per set. I followed that for a while myself (I'll be going back to it soon) and I had great results. The idea is to overload the muscle with a weight that's heavier than it's used to lifting- This tells the body to adapt to that weight by growing more muscle.
The only problem with bulking is that you have to gain some fat when you're bulking right. The layer of fat you might have on your abs will hang around there until you go into a cutting phase- And during a cutting phase, you don't really gain any muscle. You might have to choose between your goals here- Do you want to see those abs first, or put on some more size first?
One more note, about your workout- Looks good, but if you want to get the most out of your chest, tricep and shoulder workouts, you should space them out from each other. During the bench press, your shoulders and triceps do a lot of work even though it targets the chest more than anything. If you work your triceps before your chest on day 1, your bench press will suffer- You won't be able to lift to your full potential, thereby cheating your chest of a good workout. It's the same thing the other way around, and the same thing with shoulders- They'll need more than a day to recover from a good chest workout for you to really work them to their potential. Here's the routine I followed when I was on Max OT-
Monday- Chest
Tuesday- Legs
Wednesday- Shoulders
Thursday- Back
Friday- Arms
I'd also throw in a forearm and ab workout in there on whatever day I chose that week.
Also, I'd advise against throwing in extra forearm workouts- Hit them hard when it's their turn during the week, and then let them heal. Remember, muscle grows while it's at rest, not while you're in the gym.
Hope this helps!
