Move the pivot to the area of the joint you want to bend.
Use Gizmo or transform to pose the area
This technique works very well. Another thing you can do is use layers to save the poses as morph targets. For example, mask off the leg and create a layer. Then move the leg. Now you have a layer as a morph target to move the leg.
Also, if you simple merge objects, you can pose them individually by selecting the object with the mask tool selected. Remember to invert the mask to move the selected object
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Rendering additive elements (like a candle flame) inside of a transparent element (with reflective material) doesn’t render correctly. Check out how to fix it below: