Hi Watercolour Dragon. Thanks for the kind words and the questions. I will do my best to answer what I can -- of course you can take and use (and hopefully better) any of the ideas I've posted - that's the reasons for sharing!
1) I have a desk-mounted white light+magnifying glass combo. I only really use it on eyes and to get certain really tiny details in the models. More recently, I've started using it to try to identify mold lines for removal. Just search for "magnifying desk lamp" on amazon and I'm sure you'll have a lot to choose from.
2) The master cave spider's webbing was done by boiling a piece of fabric softener (a dryer sheet), then pulling it apart and gluing it down to the base. The nice thing about this method is that a) it looks pretty ok and b) it's quite durable (as compared to glue lines or whatever), so you can still use the pieces to play with.
3) I paint hair or fur on animals by using several colors of thinned paint using very light brushstrokes (like barely touch the model light), which I think adds some dimension to the hair look. I did this particularly on my Barghests.
4) smoke and mist are tough...I've been working on some ideas myself, but haven't found anything that works super well yet. Most of my experiments involve cotton swabs/balls teased apart and painted, and while that might be ok, I run into trouble when it comes to making everything scale appropriately to the miniature's size.
5) The slime in the verminous sewer base is actually hot glue. The base is pink foam board. The sewer bars are toothpicks that I cut down to size. I then painted the hot glue with P3 Necrotite Green, and when that was dry, I gave it a wash with Athonian Camoshade (GW). After that dried, I reclaimed a few spots with the Necrotite, and then added a gloss varnish.
6) most glues aren't going to melt plastic, resin, or metal. What stuff are you using!?
7) thanks for the tip on eye focus! I really look forward to seeing your stuff posted.