I would say, they are Chinese, or Taiwanese, typical flower themes and techniques, but very beautifull, as far as I can see on the right side.
The writing is in all cases not in the right order on the fotos, the left pic you have to turn once more on the right side and down, they usually write from up to down, and then from the right to the left side traditionally.
It could be a poem, which is often the case. Maybe even one from the painter. The name of the first one seems to be written over the stamp, but I am not sure.
The other ones are simply upside down, in that case it is written from the side without stamp towards the red name stamp, which always is the final signature. Here the writing is on top of the painting, but from right to left then.
At least you can see your pictures from the right side now;-)
Don't ask me about the translations, someone with good Kanji knowledge can surely do some explanations already, because the meanings are often the same, at least about. I can see a few known Kanjis for me, but not enough to tell you more, since it is written in a kind of grass-script(fluent handwriting), but not too difficult for local chinese or japanese people to read. Thus you may well find out here.
Much luck!