Robot mode is Megatron and done pretty well. The mixture between the silver paint of the arms and the upper body, the moulded silver grey of the upper legs and the grey paint of the fusion cannon and legs fronts is a little jarring, as is the bright orange cap on the front of the fusion cannon. The articulation is great with ball jointed knees, hips and shoulders.
Transformation: fold his left arm up so it sticks straight out of his shoulder. Pull the waist first down and then to the side under his left arm before pushing it up into the arm. Fold his right arm under the upper body and then fold the fusion cannon up to become the gun barrel. Fold both lower legs up at the knees so that the shell of the lower legs covers the upper legs.
Megatron's gun mode looks like his g1/Microchange version, albeit minus the silencer, scope & stock and with the addition of an orange cap on the barrel. If I could paint that's be gone. The handle, formed from the legs is a bit big but there's some holes and tabs set in it which allow Masterpiece Starscream. to hold him.
Not a bad attempt givem the limits of the size.