This is my demo of the slight mis-registration that a Poser comics artist may in some circumstances encounter, after running Poser’s Comic Book Preview inks through DAP’s ‘GrNovel’ filter to make them a touch more artistic. Here the ‘GrNovel’ inks layer has been experimentally blended in Photoshop with Soft Light at 50%, rather than simply having its white knocked out. This gives a lovely look to the scene, but means that we can see that its inks are not quite aligning with the underlying colour flats layer. As a result of the blending mode, you can see ghosting that reveals that the mushrooms in the scene lack a firm ‘fit’ with the inks layer above them. This mis-alignment would also be even more visible on some of the tree branches, if the glow effect were not masking it. The choice of a pale background makes this worse.
So there’s sometimes a reason to prefer the original Poser inks, because the funkier you make the filtering of your inks, the less the inks will align with your colour flats layer beneath. Especially if the colour flats have themselves been filtered, and carry their own toon edge. The lesson here is: try to keep your colour flats as flats, and don’t also add ink or pencil-like lines to them, if you’re then going to add another layer of inking on top (as is the case in the experimental picture seen above, in which I foolishly laid another ink layer over an already processed finished picture).
A dark background will however usually cover up and ‘absorb’ such problems. The lack of visual acuity in the non-artist audience will also mask much, as 85% of them probably won’t even notice that anything is wrong, even with the pale background. Also keep in mind that when reading a comic, the eye becomes quite forgiving of such defects as it skips from panel to panel.
That said, if you set your story at night or in a dark forest, then not only will you have to worry less about backgrounds, but you may also get away with fudging around such layer registration problems.
Incidentally, the glow effect here is just a third of the original Poser inks, with their white knocked out and a chalk Layer Style effect applied. Yes… when applied to inked line-art, Photoshop Layer Styles can be used for more than making cheesy extruded-3D lettering — who knew?