damn man those clones are pretty big, i ussually take ones that are about 3 inches long.

ive taken over 60 clones so far and havnt lost any yet, im sure i just doomed myself by saying that. but my advice-

indirect sunlight is best, as long as you have a humidity dome

the mother looks fine to me, i always use the same strength nutes afterwards but your probably on the safer side with 1/4

as for the foliar spray i always had problems with nitrogen definciencys after the clones took to rooting because they immediately started growing so fast. i think you could easily get away with adding liquid karma or whatever your preffered kelp/guano/castings spray is.

looks good from here!

now to let someone whos taken 60,000 clones successfully answer....