Your second image is of a burst Milkweed seed pod, which is the host plant to the Monarch butterfly in your fourth image. I hope that you kept a few milkweed seeds to plant this spring, as we need more milkweed plants to sustain our dwindling population of Monarch butterflies.
What a great start Agnes - I have one taken recently of a plant that is flowering in the house. Am sure it is early as spring is not yet here by any means! I call it Queen of Tears - anyone know its botanical name please?