Hi I would like to have you try to combine the #13 and the #24. I love the balloons of the #13 they give a great lightness. The font of the #24 is very nice.
#39 It becomes a bit too confusing. Only one balloon, perhaps in clear red.
#41 try this without the long balloon. They all look very good but I need to keep it rather simple in the amount of signals. Sothing infront or behind the text. How will it work with red letters?
#45 and #46 are very good. 2 changes that might make it better. on #13 the bottom text is straight and gives a more natural and lifting effect from the balloons. Can you try that? And try to tilt the blue balloon a bit to one side. - perhaps even turn around like the others and with a string as well?
#55 is looking good. Could you try with an other color to the O balloon? and raise it a bit more so you can see the string? The light stribe in the letters is missing, please add that.