I was bored in class [SURPRISE!] and I doodled a concept of Ic growing up. All pre-limbs and stuff.

Just a little on the thought that went into it, The shape is a general body that will slowly grow and morph into that of my grown sona. His fins have five spines each due to them becoming hands and feet after very long periods of growth. There is the small patch of fur before the fin that translates over directly, as obvious. A small flap over the otolith which will lengthen and form ears. The final part is the dorsal fin. It is a key component to fish to stay balanced, but doesn't appear on my sona. This is due to it staying relatively small as he grows in size, and then becoming covered by the ridge of fur down his back, making it very much unseen, like his gils.