In love with my weeping willow bonsai's growth!

Introducing my new plants. My Weeping Willow Bonsai Trees. I’m impressed with the growth rate. I got them as mere sticks and in one week literally 5 days roots appeared on day 8 I saw foliage on the stalks. Omgosh! I was floored. I’m in LOVE already! Any suggestions or tips from anyone. I did a bunch of research but, wanting to know if anyone had experience with these. TIA.