I purchased my first bonsai January 13th and it looked amazing [pic 1], lots of very green leaves with the cat's tongue texture [pic 2]. I am using Green Green fertilizer biweekly in a pretty loose soil [pic 3]. I water when the top soil is dry, every 1-2 days, I have an artificial light set up (CFL, Full Spectrum, amazon link: https://tinyurl.com/y2f5k9dy) and a humidity tray, but in the last 3 weeks my Bobsai friend has shed majority of its leaves and the remaining ones droop [pics 4,5]. Advice? Thank you!