This is how default welcome message looks like.
You can change it by editing /etc/banner
file on your carambola.
..|'''.| Powered by 8devices.com '|| '|| .|' ' .... ... .. .... .. .. .. || ... ... || .... || '' .|| ||' '' '' .|| || || || ||' || .| '|. || '' .|| '|. . .|' || || .|' || || || || || | || || || .|' || ''|....' '|..'|' .||. '|..'|' .|| || ||. '|...' '|..|' .||. '|..'|'
Several websites where you can create your own ASCII art: