In chapter 3 of my public report KD 601 (see website:
www.kdwindturbines.nl), I give the design theory for a H-Darrieus rotor derived from the design theory of a HAWT. I also give the geometry for a 3-bladed rotor with a radius R = 1 m and a rotor height H =1.5 m. I found that the optimum tip speed ratio lambda = 4.2 and that the chord c must be about 0.2 m if a symmetrical airfoil NACA 0015 is used. If you scale this rotor up to a diameter of 4 m, so to R = 2 m, you need a chord of about 0.4 m and that is about what you have. The chord is independent of the height H, so your design with H = 1 m seems about optimal if you have used a similar symmetrical airfoil.
But there is a very good reason why you can get almost no torque out of this rotor and that is that a H-Darrieus rotor has a Cq-lamba curve which is negative for low values of lambda. You have no provision to increase the starting torque and so the curve "fixed blades" out of figure 4 of KD 601 is valid for your rotor. In this estimated curve, you can see that the torque coefficient is positieve for 0 < lambda < 0.3 because in this region the rotor is working as a drag machine. However, it is negative for 0.3 < lambda < 1.4 because for this lambda range, the airfoil is stalling at the front and the back side. A stalling airfoil has a lot of drag and this causes a negative torque. For a real positive Cq and Cp value, the lambda must be higher than 1.4 and this requires a starting mechanisme for a rotor with fixed blades. This is one of the disadvantages of a Darrieus rotor. Other disadvantages are given in my public report KD 215. It is never possible to solve all disadvantages of Darrieus rotors and therefore my advise is to forget this kind of wind turbines.
I think that your rotor will turn if you twist a rope around the shaft and pull the rope untill your rotor is turning fast enough to come in the lambda range for which the torque is positive. But once it is in this lamda range, it will accelerate and finally it will turn with an unloaded tip speed ratio of almost 7. This may result in a very dangerous situation at high wind speeds if there is no brake to stop the rotor! So don't try this for high wind speeds.