I'm not sure what the ignition point of super glue is but I'd suggest you stop using it on things you're going to be baking. There's got to be some dangerous off-gassing at the very least, even though fimo bakes at a relatively lowish temperature.
Pretty much everyone does what freakinacage suggested. Multiple layers, first layer is a bulking up, general form, sort of thing, following layers are for refining the detail. I tend to double bake polymer clay instead of using greenstuff or other 2 part putties, because it's just a cheaper material and there's no time limit. Generally speaking, you're shooting yourself in the foot, if you are trying to sculpt the whole body strait on top of the armature in one stage. Looks like you achieved a good result so far though.
Some people mix in a bit of colour into their white sculpting clays. Generally, to see and photograph details easily, you'd want a mid-tone, something neutral. An earth tone or a grey. So if you mix in a bit of black or brown fimo with the white it will make your life easier. Less strain on your eyes. Or you can mix in a bit of whatever colour the object you're sculpting will be, which will still help you see things better but it will also help identify/relate and connect with the subject matter.
