Candles are pretty easy to made. You just need: sticks (I used the ones from cotton thingies to clean ears;p) thin wire to make candlewick, bit of gs to fix it inside the 'candle' and plenty PVA glue and patience.
1.Creating a candle
Cut sticks into pieces (as long as you require), fix it to the flat surface temporarily i.e. with blue tac (or you can fix it where it should be for good with a gs formed in the shape of melted wax), fix a wire on the top (you can make the flame first or just leave the wire a bit longer to do that later) and then start placing glue to imitate melted wax.
I was doing that with a thin brush, just placing a drop of glue on the top of the candle letting it to go down. You're gonna need a lot of layers to build up and ofc sometimes you'll start not from the top but somewhere in the middle to make the melted wax look better and more natural.
Here is the picture of finished candles, but because PVA glue is white it's quite hard to see what exactly is happening there, so next you can see candles after priming.
I did it in two steps. First I had to create general shape of the flame, and later, when gs was hard enough, I added a bit to make it a bit wider at the bottom. Probably I could do it at one time, but my skill with gs is not great yet;p
And of course not every flame is perfect, but in group they look good enough.
3. Fixing candles to the surface.
Like I said before, you can use gs to do that, but I decided to do it with a PVA glue. And just like with melted wax on the candles, I placed small amounts of glue around the candle to create a round-ish shape of melted wax:
There is no one good recipe how to paint candles. Everything depends on your other light sources. If the additional light source is strong enough it would be look something like that:
If candles are the strongest light source on your base, just the tips of them would be bright and bottoms hidden in shadows with a stripe of more intense colour in the middle, like on this pictures:
As for the colours you could use, all depends on the colour of the wax you like. I used 'Menoth White Base' from P3 as a base colour, Offwhite (70820 Vallejo model color) for highlights, Sepia shade (78200 Vallejo wash) for shading, and some yellow glazes to warm candles a bit.
4. Painting a flame.
That was tough I must say. Looking at various photos of burning flames I had one idea how to do that, but miniatures painted already, were saying something completely different. But because 'miniature way' is more spectacular, I decided to go this way.
So, following this article: Fire - theory, I made bright bottoms and orange tops.
5. Painting OSL on the floor....
That's something I'm still trying to figure out how to do properly, so I'm not gonna even try to give you any advices on that subject.
Maybe just a few pictures: