Step one-

go on PicsArt if you have it if you don't I highly recomend it for making an Aesthetc!

Step 2-

Open PicsArt and choose the Plus sign below where the arrows are pointing.

Step 3-

Now you see three options on the bottom of the screen click collage.

Step 4-

You now see three options, now click grid.

Step 5-

Now it pops up to this screen this is the thing you will use for the Aesthetic these are the grids I use but you can use any of them of your choosing!

Step 6-

Now Close PicsArt and go on Google search. ( these are my bookmarks for my ipad so dont worry about those-) you now search any thing of your choosing of the Aesthetic you are making!

Step 7-

I did Sealand aesthetic so this will probaly how it will turn out with all the effects and transparents! ( thats my watermark on the top of the edit dont worry about that! )

I hope that Helped some of you of how I make aesthetics! ❤️
Have fun and good luck! ☆