That's good to hear and that's progressIt's a week today since we trapped my little guy. He seems more comfortable.
You can reposition the storage bin and leave a lower cardboard box at the same place where the storage bin was. Since he's hold up there, tis could be his safe place as when the storage bin was before, he could like take cover behind it and observe the room.
So by placing a lower box, he still can stay there and you can see him but you never know, he may just switch position if he finds that he is not secure anymore.
You can hold back the food for a little while and try feeding him with your hand or an extended spoon. If he doesn't take it from you, leave his food on his plate and stay a distance from him, sit down and do some reading and read out softly to him. If after awhile he still does not eat, leave the room and let him eat while observing from the camera.
With the camera, you can learn a lot about him. Also when you are about to enter the room each time, announce you arrival by making a little noise outside the room and by calling his name and enter slowly so that he don't get a sudden shock when you enter the room.
Also they playing with him with the wand or rolling the ball to him and using the wand or move very slow towards him to retrieve the ball. Get him use to play and your movements and let him build up his confidence in you through all these as this is on your part of interaction with him and once he feels cools about it, he'll make the move to interact with you. Give him food after play.
Progress are in very small step, so don't rush through and blow it.