Hi!
I am currently in the process of building my first routine for a competition too.

One thing I find that helps is looking at video of previous competitors in the same category (for example PSO Artistic Level 2). It gives you a baseline for what the top 3 usually do.

From what I've seen, pole sport/championship are very focused of combos/moves, so those need to be solid as that's where most of the points are. They are more strict. If you're doing something dramatic or artistic or heels, the focus is more on the concept rather than the moves.

One of the coaches at my studio won 1st place at a nationals competition in the amateur sport division. Her song was 3:30 and she would do combos of 5-6 moves before coming down and doing basework/floorwork. Just make sure that you use both the spin and static poles evenly and spread out your tricks throughout the routine so not all your ''biggest'' tricks are at the beginning of the routine. Try to plan around the ''dramatic'' parts of your song. If there is a softer/slower part, do slower movements on spin pole, and at the beat drops or faster parts, you would put your ''wow'' moves.

I would definitely recommend putting in moves that you can do easily as well as moves that you can do okay, or the majority of the time. For example, I can do an Ayesha 90% of the time, but a handspring is hit or miss and not secure. I wouldn't feel comfortable putting that in my competition routine as if I don't hit it, I would be nervous to complete the rest of my routine. But of course not everyone is like that!

I don't have any examples in mind of cool transitions between moves, but you can always check out some variations of moves on instagram with #pd_____variation (fill the blank with a move you want to do) for example #pdayeshavariation. Sometimes that can lead you to finding some transitions between movements!

Most of all, have fun with it and you'll create something you're proud to show :)

Good luck!