Tricolor LEDs cannot be wired serially (meaning current flows THRU one device to the next device). They must be wired in parallel, with each operating on the same supply voltage. A current limiting resistor should be used for each device (so, two tricolor LEDs require 6 resistors. can't tell if yours have resistors built in). Your bottom right hand connections give that impression - with 5V going in and the lilypad pin going low to turn the LED on (those are common anode parts, yes?)
Your standard group - you will drive D2 high and D1 low to turn these on? Better get a current limit resistor in there - if each LED will take 20mA, you will burn out D1 or D2, kind of a crap shoot as to which will go first. One per device would be better. Unless the resistor is built into the LED module.
Sensors - unless you are doing something to switch the power on & off, where you connect to the positive supply voltage is basically a matter of convenience.
What you show is fine.