Well done!

If you printed it the other way around, standing on the side edge, you might get a nicer result. The three "cutouts" for the steem logo are all below 45 degrees of angle, so the surfaces there will not need any support.

Print it like the image third from bottom in this post shows.

Also set the print speed down as much as possible. Nicer and cleaner surfaces when printing slow.
best regards
Lars