If you make an object which you're moving out from, attacking, and then ducking back behind, you shouldn't face the issue of the illusion being exposed from return fire. If they can't see you, they can't target you well nor see if you're hit or not. They're not going to try and shoot through a wooden crate. You'll force them to move to try and get a bead on you behind the crate, or more likely just choose another target.
Here's where the real fun comes in: Silent Image. Unlike Minor Image which can only make a sound or an object, Silent Image can also create "other visible phenomenon." Which means it can create a 15' cube of fog. Or, if you want to get clever, a 15' cube of what appears to be poisonous gas, complete with the sounds of your allies choking from a Minor Illusion cast as a bonus action (which you can do in the same round as the second spell is not a spell slot).
Now your allies, who automatically have interacted with the fog or gas from being inside it, can automatically see through it as it turns translucent for them. But foes cannot see them and are effectively blind with regard to them. So allies can shoot out at advantage, and enemies shoot in at disadvantage.
And since you expect an arrow to go through fog or gas, there hasn't been the kind of interaction which gives away that it's an illusion. The enemy would have to enter it to notice it's not feeling damp for fog or chocking them or giving off any scent for gas. And it's unlikely enemies do that if it looks like poison gas and they hear people choking from it.