I like number 6 the best. Can you, you try with a few different color schemes, I understand you are trying to show transformation which is so cool! Can you use a different font for Transformation - that one looks too computerish. Also, I think the word transformation should be clearer and more visible because that is really the emphasis, not 4 Day
On #54, Can you create a similar concept but for another contest - https://logotournament.com/contests/21_days_to_your_dreams This is 21 Days To Your Dreams ... I want to have the logos match as the 4 Day Program will bring people into the 21 Day program