Dream realism is random!!

it's impossible to determine if your next LD will be more realistic, but when inside your dream you can do a lot of things to increase vivdness and lucidiy too! Try to say loudd and clear: "Increase realism!!!" or "Increase vividness!!!!" and believing that it will increase it probably will work!

But if you want to do something more consistent just try to look at something inside your dream and try to see all details of it (exemple: your hands, the sky, a construction...)