How long have you been seriously training, and how long have you been resistance training particularly with this diet plan?
As for the diet, I cannot say if you should specifically increase mostly the carbs or fats and decrease protein, as we are all different and have different reactions to various macro compositions in diet. But having gone through the process of bulking and cutting myself over many years, I can say this: Whatever you try, take baby steps with the calories first. You don’t want to overstep into major fat gain to increase strength numbers and scale weight, as it’s a self-defeating prophecy (trust me on that).
Your diet looks quite solid in fact; it doesn’t need much changing in my opinion. Try bumping it up by 200-300 calories daily and see where that gets you in several months (yes, a minimum of roughly 12 weeks). That could be as easy as eating an additional baked potato with olive oil at lunch, or a whole avocado at dinner, with your present meal layout.
Another thing that may be beneficial is to try to get that extra amount of calories closest to your training time, both directly before and/or after your workout, if at all possible.
The general rule of keeping your carbs highest in the am to early afternoon and your fats highest in the evening at dinner should also help as well, as this approach seems to work best for most people, in terms of favorable body recomp.
Furthermore, if you see an improvement in body comp and strength, you’re on the right track. You can incrementally increase the calories from there to add additional strength and size for continued progress.
Lastly, I am strongly in favor of gaining the minimum amount of fat while trying to add size and strength, so keep an eye on waist size as you do this, which you can track with a tape measure or (better yet) a Gulick tension tape. You don’t want to have to lose more than 5-10 pounds of fat, when it’s time to lose the added undesirable weight gain, as even the most trivial amount of fat gain means you’re presently at the required calorie range to add as much muscle as you are capable of naturally acquiring. Don’t overdue this caloric aspect of your diet program and you should save yourself the added burden and grief of cutting later on when it’s time to lean out.