I think some guesses could be made at this age beacuse my water dragon is not VERY young but could he be a male? My water dragon is almost 15 STL and is 3.5 SVL. Im guessing this is a year or 14 months right? So not TOO young to tell. He already has a decent size head crest,growing one on his tail, and is SUPER COLORFUL, and has pink on his lips(a trait i see on all males), he also has visible,somewhat bumpy pores, and has a big colorful cheek with pretty big spikes. These are traits i see in most males so could he be one or is it really still too early? Theres the video for more. WARNING: The video is very low quality so you cant see the colors or spikes well,sorry bout that.