Very difficult to find information on Onosma, and it is a confusing group, with 95 species listed for Turkey. Even the Van Flora that lists all of them, only shows descriptions and/or photos and herbarium specimens for 21 of them. The ones you show are all very attractive species. I like the little white-flowered one, very low, and showing most of the flower tube (in many Onosma the bracts conceal a large portion of the flower). The Konya blue one is lovely too. I wish more of the blue-flowered ones were available in cultivation, the genus is so poorly represented in cultivation, yet seem easy to grow.
The last one, with beautiful pink-turning-blue flowers and red stems, from Mersin (İÇEL province), seems like a close fit for Onosma albo-roseum var. sanguinolentum
. It is written about that species "The species is extremely variable in nearly all its characters; the three taxa distinguished above are not very clearly delimited. It is cited for lçel Province: Anamur to Mersin
Using the Tubives flora of Turkey database at http://turkherb.ibu.edu.tr/index.php?sayfa=200
here's a list of Onosma species for each of the three provinces you found Onosma in, this will at least narrow down your search.
Onosma in Konya province Turkey
Onosma tauricum ssp. brevifolium
Onosma in Karaman province Turkey
Onosma in İÇEL province Turkey (includes Mersin)
Onosma albo-roseum ssp sanguinolentum
Onosma tauricum var. tauricum