I like your designs, but i want to have a more fun, light feel. I looked at your designs, and I really like your design for Bloomvana Heavenly Bouquets and I Grow Colorado ( This is my favorite). I like the the colors and feel of them. Maybe you can make it more of a logo that incorporates that it is medical and MRI. MRI is magnetic resonance Imaging.
I like number 13 and number 59. 59 needs to be a little more eye catching and the font and lettering needs to be changed to be more bold and eye catching.
I like number 13 as well but it is just a little to plain for me.
Also for both of them, maybe change the colors around. use green and grey and some dark colors as well.