>1st is Mara Jade
Pretty sure that's Obi-Wan too. Most of the SW images by that artist are genderswapped Obi (with a few exceptions, like the ones I posted and this image of "Luke"). Mara has red hair and green eyes, as far as I know. Also note how the mole under her left eye is in the same spot as the other images.
>4th is Qui-Gon
Obi-Wan again, with a young Anakin I assume.
>5th is Obi-Wan and Duchess Satine Kryze
Oh, thank you. I haven't watched Clone Wars and I was wondering who that was supposed to be. Yeah, that seems to be her.
Just found that artist yesterday, shortly before I posted those. The art is just too amazing not to share it. I can dump the other SW images from her pixiv if anybody is interested.