Aaaaand as I've recently got me a own shiny, sparkling Photoshop (squee!) I can give the PS equivalents - though whatever I do it still looks slightly different in PS^^
Tutorial #4:
from
to
step 1:
+
mode screen, 100 =
step 2:
+
mode overlay, 30 =
step 3:
+
FF000, mode overlay, 10 =
IN PS
step 4:
+
CBCFD8, mode linear burn, 100 =
and you're ready :)
IN GIMP
step 4:
+
FFD186 mode grain extract, 40 =
step 5:
+
FF000 mode overlay, 15
+
FFD186 mode dodge, 15 =
finished :)
Tutorial #5:
from
to
step 1:
+
FFC601 mode softlight, 100 =
step 2:
+
mode screen, 30 =
step 3:
+
66A1EB mode burn [in PS: color burn] 100 =
step 4:
+
66A1EB mode screen, 10 =
step 5:
+
66A1EB mode soft light, 30 =
step 6:
+
FF000 mode overlay, 20 =
step 7:
+
66A1EB mode overlay, in GIMP 100, in PS 70 =
*hugs* Tina