Hello
How much does he eat at night? I would be inclined to drop the night feeds cold turkey. At his age he doesn't need them, and he probably won't start eating more during the day until they are out of the picture. It's a tricky one - want him to eat more during the day so he doesn't eat at night, but won't eat more during the day because he does eat at night!
You could use pu/pd to get rid of those feeds and it might help with the daytime eating.
The thing is, really all you can do is offer a good variety of foods. You can't force him to eat them nor do you want to. So try to create an environment that is condusive to good eating habits. Eat meals together as much as possible, if you can (which you may do already), and try to make it more of a social, fun, family atmosphere as opposed to 'his' feeding times. Even if you're not hungry, have a snack with him. When you offer him meals, offer something he likes and you know he will eat, something he doesn't seem to like, and something he's never tried. A 'snack'-type plate works well, with little bunches of different things, and let him pick at it.
Try to think of ways to change up the environment he eats in and it might change his attitude towards eating. Don't get frustrated, as hard as it is, because he will pick up on it and will associate eating with negative feelings. I know it's hard, we want our kids to eat well to be healthy and happy, and sometimes they don't cooperate.
But he won't starve. Since he is getting closer to a year you might be able to start decreasing his milk intake to encourage more solids. What is he drinking in total? I see 21oz on your routine, assuming that's not including the night feedings. After a year, I think they take closer to 20oz max milk, so you will want to decrease it to try to get him to take more of his nutrition from his solids.
I was also wondering, has he always been a picky eater, or is it more of a newer thing? Is he teething? Did he or does he suffer from reflux? Just trying to gain some more clues as to why he's not so interested.
Hope that's a good start. We'll keep working on it.