Usually I post pictures of my work, if it isnt me as the author, it's probably someone showing an example of something.
So Sr, the first picture is a reticello that has been partially filled in. The rest of them are standard reticellos.
Reticellos: Time to completion around 60-180 minutes depending on complexity
Reticellos are made by drawing straight lines on a tube in exact "o'clock" positions, then twisting the tube twice as far as you want the pattern to go, draw the exact same lines again straight down and terminate them at the same lines as the others. Then twist the tube the opposite direction half as far as the first time and then you have a reticello done. If you wanted to fill some in as in picture #1, you'd fill in the clear areas as you wanted with color stringers one partial line at a time till its filled..... Now that the reticello is done, congratulations, but its inside out. You need to reverse the tube by flipping the reticello on a disc then applying it to whatever you wanted.
Fillacello: Time to completion: 90 to 240 minutes, depending on size and complexity
Fillacello's are a similar principle, except the starting is very different to get the distinctive patterns. However, since the entire thing is filled in, it takes a lot longer. THere's also substantial risk to hurting the pattern as you work. Very delicate and time consuming. Start with some 25x4 tube (6" long should work) and attach a blow tube to it. Center it. Close the other end of the tube. Keep entire tube heated and warm, but not molten hot as you work. Only time it shoudlnt be in the flame staying hot is when your using the stringers. Attach a stringer about an inch from the end of the tube. Let the stringer fall down perpendicular to the flame so it makes a perfect ring. Then do it again further down the tube, lets say 1.5" away from the first line. Then make 4 dots on the tube on each end, for 8 dots total. The dots should be at 12, 3, 6, and 9 oclock positions EXACTLY (FUCKING EXACTLY!!) on both sides. THese arent touching the first two lines you already made, they are to the outsides as guide lines. Connect the 12 to the 3, the 3 to the 6, the 6 to the 9 and the 9 to the 12, and then do it again at the 45 minute mark for 8 diagonal lines. Then do it again the opposite way. Now, assuming you kept the tube hot and it didnt crack, gently paddle it so it sticks to the tube. You want the surface to still be rough. Next, take your assortment of stringers that you should have already pulled even though I forgot to tell you to, and fill in the fillacellos lines as you see decorative. Continue to heat the tube every few lines so it doesnt crack on you. You can start with red, then orange, yellow, etc for a fading color, or solid colors, or color each panel in differently, whatever you want.
Your probably at least 90 minutes in at this point if its your first one. Maybe further.
Next, the pattern is done, but it has to be melted into the tube. If bubbles appear because of too much heat, you will see them more on the good part of the filla than the back side, which is very bad. For that reason you MUST use a highly oxidizing flame and the back of it to slowly melt it in. Hold it around 40 degress so gravity brings it down a bit. Once thats done, punty up and puff out the section closest to the blowhose. THen remove the punty and remove all clear and color glass to and including the first line you drew. If you dont spin the glass in both directions, you will distort the pattern heavily. (Bad!). Once your happy how its terminated, continue to melt it into a disc. If your making an oil dish, just shape it and remove it and your good. If its going on something else, you have to gently puff out the clear tube while its puntied up as a cold seal, and rip it off, then use glass scissors to cut all the glass into a perfect circular shape, and then attach it to whtaever you were working on.......
I'm sure I missed a few steps but that gets you the general idea.....