The signature looks right to me BUT I had some interesting experience with a Harvey Sketch I purchased in 2007-2008 from RRAuction, which is a very reputable company. The Harvey sketch and signature looked very much like it should to me so I had NO question in my mind, at the time, that it was authentic. Years later (I think 2011) RRAuction contacts me informing me that the Harvey sketch I purchased was likely a forgery. They immediately refunded my money and apologized for the mistake and mentioned how rare it is that this happens. They mentioned the consigner had consigned several similar Harvey sketches every month and they grew suspicious (too many Harvey sketches and nothing else from them) so they investigated it and discovered the consigner was likely forging these. Interesting it was their speciality. Guess they got very good at it because the Harvey sketches they sold looked flawless to me.