CrazyYoungCatLady, hello there!!!
I must say I LOVE your flapper ghost custom. Do you make the outfits yourself? The Snow Queen's outfit is gorgeous, though for her faceup, I hope you don't mind a critique or two? I would put a bit of white paint in her eyes to mimic light hitting them. I understand they're supposed to be what I call "void eyes" with no pupil or iris, but they would still reflect light in them, and I think it would give her a spark of life.
As for your Corpse Bride custom, awesome job again, but for future reference where modification may be needed (her eyes go
way outside the pre-determined outlines for the MH base and it's rather noticeable, as long as you pay attention to the vinyl thickness beneath, you can sand away some of that definition. Here's a tutorial that explains how to sand and shape vinyl doll faces:
http://parabox.jp/eng_new/custom/custom2.html (Obviously this is an extremely small modification for both heads, but the person who originally gave me the link showed me just what a little creativity could do in this thread:
viewtopic.php?f=6&t=9487)
As for the paint issues...do you mind me asking what types of paint you're using? If it's craft store acrylics, that might be the reason for caking. I recommend using ZM Acrylics (you can buy two sets on the Volks USA website) or another high quality grade acrylic like Testors model paint, or Liquitex acrylics (most of these will need thinned out to a nice silky consistency in order to get that smooth look, the ZM Acrylics come with a thinner and the other brands have their own paint thinners). You should also note that faceups are usually "built up", as in do one part, spray some Mr. Super Clear to seal your work, and keep going.
For small brushes, you can't beat Junkyspot.
They sell some of the smallest detail brushes I have ever seen.
I hope that helps some, and I hope to see many more amazing customs from you!! If you have any questions, please feel free to ask!!
-MC