Kyphur - If I can not attain what I already envisioned with more muscle definition, maybe some strategically placed scales and skin folds then I will definitely try to implement something along your suggestion. I might google for some air gliding critter image. Good advice- Thank you again.
Hi Javi - Glad to see you back. Since then things have evolved to two separate concept designs. Original design will be able to fly, with very light frame and more raptor like features. Second one will be land bound with relatively heavyset frame and big cat, crocodile hybrid features. I am getting close to that fine line between copious imagination and fruitless obsession. We will see if I will be able to keep everything under control. Thank you for the fresh dose of supportive comments.
No dragon images today, but here is a grand old man character study to spice up this thread. All Zbrush.

Peace!