Yes, they are just fine. It is tricky getting pictures of fish. In this specific application, it is easier for the camera to focus on the lip of that bowl. To get the fish to look sharp even though they are in the background a little, you'd have to lower the f/stop from 2.8 to 5.6 or even 7. (I'd normally say raise it up, but someone will correct me.) The reason is you are increasing the depth of field so that more is in focus than just the lip of the bowl.
If I find my fish are too bright, I'll back up a couple of feet or lower the intensity of the flash (internal camera setting). But like I said, your pictures looked good to me.
In my thread, you can see a picture of the Copperband butterfly I took this evening. No flash, hand-held in macro mode. It wasn't an ideal (perpendicular) angle but it came out okay.