Yep, the little King Charles Spaniel is adorable - but you're in for a tough time with this drawing. With the photographer hovering over him, he looks shy and submissive. (Even if he is completely adorable!) The front-on view of the muzzle is going to be a challenge, as is attaching his body to his head. When dogs are sitting below you, it gets even worse, with their bodies disappearing behind them and their tails seeming to grow from their heads.
Getting down to dog's eye view helps you to get a better perspective view that is easier to draw correctly. It also encourages dogs to be less submissive, with pricked ears and relaxed eyes that are much easier to draw. The only problem is that often the dog will come towards you when you crouch down, so you'll need to have practiced your 'stay' command. (With treats, of course!) A helper holding a leash can be useful here too.