I know what that one is on the top! I can't think of the name, but I know what it is! There was thread a while ago, and that was identified... I'll try an find it.
I'd say a no go on the tree leaves. Tortoises can't reach trees in the wild, and so trees are not part of their diet
The last of these three looks like a dandelion, which is edible. That said, it is pretty hard to see on my phone, hopefully someone who can see better can confirm
I agree with Yvonne - first one is "chickweed" - Stellaria media - edible and choice. The second one looks like a Prunus, probably a grafted ornamental plum that is sprouting from below the graft - not safe.
In the second set, the first is Tecoma capensis - "cape honeysuckle" - not safe. Next one I'm not sure of. You could post more pics. Third one is not a "dandelion", but I don't know it either - I would not feed it.