DIY shoes rack

My wife was in need of organisation for all her shoes. I wanted to make shoes rack cheapest as possible. After making the corners, I wanted to use less plastic for the shelves, so I've remixed a bracket. At the end, it has cost as much as a commercial one but you won't find a rack for 9 pairs of shoes, 4 pairs of boots, and a shelf on top. She really likes it!

Fins are same as the source. The bracket was modified.

I've used :
-105 screws (6$)*
-2 x 1 kg PLA (50$)
-ipswich pine gel stain (10$)
-14 x 4"x8' boars (30$)
-2 paintbrush (3$)
-2 sandpaper sheets (I had some already)

*Prices are in CAD.