You'll either get no responses to this, or tons. But definitely not just a few
I think it depends on what you want. Getting good abs, for those of us over 20, isn't usually easy to get while getting bigger arms and pecs. I'd say to shoot for getting bigger arms and pecs first, and see if the abs come along.
My first suggestion would be to see a trainer, even for one session.
If that costs too much, I would next suggest getting a training partner. A trainer, and most likely a workout partner, will push you harder than you push yourself.
If you can't get a trainer, and can't get a workout partner, then try just pushing yourself as hard as you can. This is tough to do with weights if you don't have a spotter, but there is tons you can do with just your body weight. By pushing yourself as hard as you can, I mean that you should do your best to getting yourself close to throwing up. If you don't know what I mean, then you've never done this before. That's the main thing I got from my trainer: I can do tons more than I thought I could do, if I'm willing to get close to throwing up.
Next, if you're going for more weight (muscle mass), eat more! Even if you think you're eating enough, if your weight is not changing, you are not eating enough. Add 250 calories a day for a week, and if you haven't gained weight, add another 250 calories. Clean stuff of course, like whole grain rice, ancient grains, chicken breast, tons of veggies. If you want some good ideas on what to eat, check out the diet forums, or start another thread asking for that in particular.
Lastly, try focusing on one muscle group in particular. Instead of trying to get big arms and pecs at the same time, try to get bigger arms or bigger pecs for awhile, then attack the other muscle group after you're satisfied with the first one. So still workout everything else, but stack your workouts so that that muscle group gets more work in per week. For instance, if you want bigger arms, shift everything so that you do all of your other body parts in 2 days, and then do 2 separate days of arms in one week. (Assuming that you're working out 4 days a week, but you get the point hopefully).
Ok, real last item here. Your body fat percentage appears to be really low, so I suggest you work harder on your abs to see them. Don't do more reps; do more weight. You can get your abs to grow just like any other muscle group, if you use weight on them. Some people say not to do this, but it's really the only way if you want your ab muscles to be visible (if they aren't already, at a low bf %).
Hope that helps.