That's actually pretty decent IMO. I would just try to beef up your description keywords.
Here is a similar skateboarding shirt that is higher up in the rnakings, and has a lot more keywords in the description that it shows up whenever someone searches for any of those words
Amazon product ASIN B07PHRYY2H
- Kick Flip Repeat Vintage Skate T-Shirt
- Do you love to skateboard? Perfect day spent at the park doing tricks like grind, ollie, fakie, kickflip, pop shove, heelflip and 180? Love your deck, trucks and wheels? Ride goofy? Love a good half pipe, rail or ramp? Makes a great sk8 skater gift!
I use this link to search for ideas / similar shirts, and to see how much competition is already in that niche:
https://merchinformer.com/merch-amazon-listings/
Then again, I'm not selling a ton like
maldonado
and others. I'm T500, have like 50 designs active... and sell ~10-15 shirts a month. I need to step my **** up, haven't really uploaded much for the last 4+ months besides a few.