I'll try to add some black to the Fire Queen. I can probably get it done for her garments, not sure about the rest though.
I suppose, only sleeves and boots really require that.
Rotating huh? Hum... Click. Click. Click. Click. Ha! There you go. Show me something can be done and I'll be happy to try and reproduce it! How's that
The scroll with the Rocca's Chalice looks acceptably good, the angles are close to perfect both horizontal and vertical, although I must say that the chalice is blurry. Perhaps Photoshop is not the right way to do that in that resolution, the picture should be enlarged considerably in Paint first, like 800% or more.
The other solution will be smart sharpening the existing small picture, but I guess it will be harder.
Speaking of angles, I'd prefer to tilt horizontally to -30 degrees and vertically to 8 degrees in MS Paint.
Speaking of alternatives, I managed to do this by my humble pixel art skills. The image for sure can and should be upgraded further, posting it here just to show the capabilities of MS Paint. (: