One carabiner and a loose block.

The other anchor was fine.

Tiny tree, thin webbing, single carabiner, 8mm rope, at least the other anchor is a fat static line.

No, the blue webbing doesn't make the anchor better, it introduces the possibility of side loading and increases the angle of the anchors, weakening them.  Two big trees with static rope anchors were overkill to begin with.

Start with the dead tree?

The tree at left is dead.

If I tie off above the hollow, it's stronger, right?  No, it is not.

So, the good anchor didn't get the knot right.

Why use the big tree when you can sling the slippery rock? Using webbing and carabiners adds points of failure. The tree would increase the angle on the anchor, but there are better rocks near the other anchor.

Leave no trace?

Made in Mexico? They left China for Mexico?

The small tree is the anchor holding 100% of the weight. The other anchor was a large tree, but that doesn't matter since it isn't part of the system.

This is what it looks like when the gauge at Little Falls reads 8 ft.