Hi Salazar,
The fact that Keithunited is disappointed with his result and is actively looking for more density and more naturalness to his previous transplant indicates to me that his ht surgery was not a successful one. To be honest, I feel too many grafts were used for a small area of loss and his pics show somewhat of an unnatural hairline was created. Not all is lost for Keith, he needs to find a ht doctor who is able to refine previous work done.
The idea of a successful ht is somewhat subjective and expectations certainly need to be managed well ahead of booking surgery. Having said that, you can achieve a natural hairline and natural looking ht that no one expects work was done by going to the right clinic with hundreds/thousands of happy and satisfied patients.