I'll give my two cents here; others may have different suggestions. Normally, if the figs were planted in a lighter soil mix, you'd probably want to wait until they were better established before putting them in the ground. The risk of doing it at this stage is that you might damage those new roots, and either kill the plants or cause a set-back. However, I've had very good success protecting the roots while transplanting small figs by:
1) getting the planting spot all ready ahead of time, with a pile soil on hand for back-filling;
2) carefully cutting down through opposite sides of the pot and completely removing the bottom (so you have the soil-ball contained between just the two halves of the pot);
3) while carefully holding the sliced pot, tip it partly on its side and lift off the upper half, so the soil is resting on just the bottom half;
4) still keeping it tipped, and still supporting it with your hand, place it in the hole on a little mound of soft soil and add a small pile of soil between the rootball and the side of the hole;
5) tip the plant upright and lightly press the exposed side of the plant's soil ball against the pile of infill soil;
6) with the half-pot still in place, add enough soil all around to support the plant;
7) carefully lift/slide out the remaining half pot, finish filling the hole, and press the soil down lightly.
If all goes well, your plants won't even know anything's changed. It looks like you could do it easily enough for the ones in clear cups, but you probably should leave the one in the heavy green pot for a while so it can grow enough roots to hold the soil together when you take it out of the pot (since for this one, the pot is too thick/hard to cut in half as I described). Good luck!