I am left-handed too and i just bouth what i feel it's the best planner out there. I bouth it from Digital Planner Heaven and for less than 20$ you get THREE YEARS of planners. But not just daily planners. You get weekly, monthly and daily planners. You get grocery shopping notes, gym rutine notes, financial notes and a lot more with every single thing hyperlinked for faster movement through the file. It's simply amazing.
But there is even more, you get the left and right-handed version in portrait and landscape mode so you can choose whichever you want and if it gets updated they send you an email with the updated planner for free!!!
Sincerely i think this is a steal.
You can change it. Right now i don't remember but before the update i had a porsche gt3rs on my sleepscreen and a custom off screen too. If you search "change sleep screen remarkable 2" you will find how to do it for sure. After that just use the image on this post.