Alfa The tenx part is pretty cool. Maybe the Extreme sport could be more mellow. Since very extreme right now

Bravo Thanks for the feedback

Charlie I would combine ten with a nice sans font below

Delta A bit too cliché and it's hard to read since the letters are very slim. A wider font and another color scheme would make it stand out more.

Echo It took me 6 sec to figure out what it meant, not a good thing.