The incision looks good, as A & B says. Thank you Wick for the helpful screenshot instruction!

You can feed the pellets mash in small portions 3-5 times a day. It’s great that she ate a few strands of hay, that’s actually really great.

Sometimes you need to customize a feeding syringe and make the hole bigger with a knife. I like using small syringes (1 ml) but I always saw the tip off the syringe with a bread knife or the pellet mash/Critical Care won’t go through. And do put a small plate with some mash + banana on it, some buns are reluctant at first but if they venture to have a taste they can often not resist to gobble up the whole thing. What she eats now is less important than that she eats something.