Maybe eishya caught some of this stuff but I'm seeing these problems, so I wanted to do a take on it...
There are a few things in this crop I messed with here.
One wall I made a full out brick texture, skewed. Did a rough tiling job. More realistic way but time consuming and the detail can be distracting, depends.
Other wall I winged it, it's a stripped down version of this. This is totally broken and won't tile w/o cleanup, just wanted to show alternative that fits in more with yours.
A good key to this (2nd texture): Borders are a cheap way to add detail. It's one of the places where the contrast is, contrast is what eyeballs get drawn to, power of suggestion. You can have wastelands of blank space, add 2 details around borders and it can work. But a lot of your borders are flat. Look at what I did w/ the weeds between grass and bricks. So something is missing is there and transition tiles like this probably are gonna fix it.
IDK if it's a broken-down projects (possible) but if it is this there's a lot more I would change too. You can make it look rough but still cartoony.
Edited a tree. Work on your trees bro!