Build 3D models of a dragon from baby stage to adult stage ( 10 stages)

We're an EDUTECH start-up, building apps, for kids to play and learn. We are building an app, that requires a Dragon to be interacting with the user. The model will be moved around the screen (developed by the app developer) The following are the requirements. Model a dragon, at different stages of growing - 10 models [login to view URL] will be a baby dragon - NO wings, No nails, No fangs / teeth, No spikes on tail, NO horns, innocent looking, baby skin tone, small size. 2. Dragon will be 1 year old dragon, with small wings growing, and a baby tooth, playful looking, 20% size grown. 3. Dragon, will be a 3 year old dragon, wings 75% grown, small nails, all teeth, but None sharp, Horns grown 50%, another 30% size grown. 4. Dragon will be a 9 year old dragon, wings completely grown, full nails, sharp teeth, mature skin texture, full fledged horns, aggressive looking & cool looking ( two separate models), another 30% size grown. 5. Dragon will be a 12 year old dragon, another 20% size grown, full fledged dragon, long tongue, snorting nose. Start with hand modelled sketches / basic digital design for 1st level of modelling. Give us details, before you start. 1. Colour. 2. Skin texture 3. other features ( you ideate).