I've tried searching and couldn't find much but apologies if already discussed!
Would be great to see any photos of tarp setups for breezy or rainy conditions.
I have used the first setup (below) for a few years and whilst it offers protection on 2 sides (and partially on the 3rd side especially with a frame bag) it is a bit fiddly to set up (especially out in the wild with darkness/stones/lumps/roots to avoid), and the headroom is not amazing. With a bivvy bag and a soaking wet tarp sometimes I find the only way to really get out is to barrel roll sideways!

The second setup I used for the first time yesterday night, it is better for length as you can shuffle your feet right to the end (and it doesn't matter if they get rained on) but it was colder than expected and it did highlight how a slight change of wind direction results in a freezing cold face all night!

I don't have poles, would that simplify setup much? Obviously it would remove the bike from the equation, how its not ripped the tarp on the odd occasion it falls over during setup is a miracle!