WW1 moc digital render

Hey guys, i'm building a moc of WW1 around 1915 (it will be loosely historical) and i wanted to get some feedback. I don't have the financial freedom of just ordering a ton of parts and then see what's to build so I decided to build it on the lego Studio program. The pseudo sandbags will be replaced irl by costum made ones i have and they'll also be on the parados. What would you guys improve before i order the parts? Do you have any thing in general you'd like to share? Thanks for reading...