Royan,
#101 and #102 are very good, you are on the right track, however, I like your "M" logo, but please suggest different color scheme to make it clearer, although I like the "M" logo to be either on top of the word "Medika" or in front of "Medika".
I would also like to see "Medika" to be in darker color so it is clearer.
Roy