Looks pretty good.

For your abs (as the most commonly desired, but least achieved part on a guy) nutrition is everything. However, as a rule - I make myself do 3 sets of 65-70 twists before I allow myself a shower, every day. Just get into a habit of this (if you really want to remove your gut) and let it become everyday routine.

I would start on 30 twists, 3 sets maybe 4-5 times a week.

Abs are the single hardest thing to work and maintain, but it makes a statement if you have them nailed.