Pretty nice.
Shoe rack that can double as a bench or step stool because it is overbuilt.
Personal pref and an observation. It look like you used a 'hard' grinding wheel to blend out the welds on the mitered corners. I prefer to use a flap disk to flatten out and blend welds in. For me, I can 'feather' out the grind a bit more evenly (and also have multiple grit flap disks to go from coarse to medium to fine grit as needed). I -think- I can see a faint 'shadow line' of the grinding telegraphing through the paint on a few of the mitered corners.
Second personal preference. It's not 'needed' from a strength standpoint in this application, but I don't like to leave an unwelded seam. I just don't like that 'open' seam/joint where a small neat fillet weld would 'close' it all up (the inside corner where the horizontal tubes meet the verticals). Again, personal preference and not 'needed'.
Nice rack dude.