I've been studying Uma Thurman's autograph ever since I got her Autograph on a really nice display piece. After countless hours of study I now know the common characteristics, below are all authentic examples of her Autograph (Except the last one). The pattern is pretty clear to me, with little variants of her graph.  The second and third to last examples are very "Rushed" examples but still contains some characteristics of her graph. (Definitely not ones I would want to own) The first three I believe are early examples of her graph, which I haven't seen any other ones out there that I know of. Common characteristics of her graph include, formation of the "U" both end of it are the same height or the left side of the "U" is little shorter than the right side by an inch or so, the "U's" line will usually not overlap after in the "U" the formation of the "M" is typically it will overlap the first down then it will arch and overlap the second line then arch again and not overlap on the line of the "M" then after that it will usually go either up at an angle to form the "A" or there will be times the "A" will be formed right after the last arch of the "M". Then there are examples where she signs "Uma" with a "V" as the first letter. The last part of her Autograph which is "Thurman" the typical characteristics are a line down then above that it's usually an arch sometimes the first line down will overlap then a little "M" then trails off to a straight line. Sometimes the last part of her graph will actually not have the little m then trail off, it will have a line down then above that it will be a line over to the right then a line down then a line straight over to the right. It's basically the same thing but without the little "M" in it but very rarely do I ever see that. The last one in these photos is a blatant forgery "The Posion Ivy Picture". Also the second to last one looks really rushed and I can't say if it's authentic or not (Defiantly not one I would ever think of purchasing and definitely not one I would ever trust) I know there is probably a lot more that could be added to this but this what I know for studying her graph so far.