SentrumLogo Design Contest

Hello, I hope you like my concepts
#1 #2

Thanks
Suke

also #19

Hi! Thanks for ranked.
Here are the update designs
$47 $48

Hope you like it

Thanks

On #1 and #48 could you take the big "S" out of the logo and put the tag line on the book? Also could you do another one in different shades of green.

Here we go!
#85 #86
#87 #88
#89 #90