Tone is right. Fun and colourful Good use of props (bingo balls and candles).
Cons:
The blue on #4 and #5 is a little washed out. Could look a little more like physical candles Alignment doesn't quite work. If aligned to top left of website it would be better if the text in the logo was aligned on the left Would be good to have a square option to use as avatar, favicon, etc. can't see it working with these designs.