Obi-Wan Kenobi was a Jedi Master who served on the Jedi High Council during the final years of the Republic Era. As a High Jedi General, Kenobi served in the Grand Army of the Republic that fought against the Separatist Droid Army during the Clone Wars. His clothing style is clone-oriented, and simulates clothing style from TCW cartoon TV series.
This model was created from some photos of collectible figurines well as some other limited photos, so might look a little 'toy-like', therefore suggest adding some rendering styles to break it up, such as painterly styles like I have shown here. Also, suggest complementing with a real-life Obi-Wan facial Lora.