I think the lightsaber blade is too thing and short, imo.
^ the colored portion of the blade usually extends to about the same thickness of the hilt
Yes but you might have some certain hilt designs where certain portions are thicker. Also the lightsaber looks even shorter in that picture than in the on that I posted.
On wookiepedia it says that the average lightsaber blade length is 125 centimeters (roughly four feet). That is not even the same height as the average human male. The lightsabers that I've made are roughly as tall as the ingame blockheads. I don't think it's too short.