My best advice for an lp is remember who your performing for, NON FSERS
this isnt a competition between you and another fser so you dont have to shell out your hardest stuff, in fact, i say dont even try too
only do tricks/combos your 100% confident with, simple things like atw-atw-atw and atw-co-atw is definitly nooby to other fsers, but to people who have never experienced it, its mind blowing
easy uppers are definitly a must, simple things like neck/head/sidehead stalls still do alot, and sole juggling/sole stall helps
the only way to get better at lps and getting a more difficult routine is with practice
my lp's only consist of uppers cause of injuries but im really consistant on harder things, i usually do aproll-rproll-rproll nps and sideheads. sean upper move is a crowd pleaser and so is fingerspin atw, and spinning sidehead.
hope some of this helped
but the best tip is: YOUR PERFORMING FOR NON FSERS, DON'T GO HARCORE UNLESS YOU DO IT CONSISTANTLY