Well, not all of the photos were from the tower of the sun themselves - the first is from the rose garden, the second and third are from the expo 70 museum (inside the old steel pavilion), and the last is from the exhibit area of Expo 70 park stop on the Osaka Monorail. The tower itself only recently started hosting visitors again…it was closed until 2023 or so, and getting in meant you’ll need to put reservations in advance for it, and that’s limited by the capacity of the elevators. I actually missed my reservation window by about 20 minutes…and if anyone is interested there are more photos on the discord server.
As for Itami skypark, it’s actually alongside Itami airport, and not near the Expo70 park - it’s actually quite a distance away from each other (about 35 minutes from each other on the Osaka monorail).
The Expo70 park has a large shopping mall (LalaPort ExpoCity) along with a ferris wheel next to it. Denizens of Tokyo will find it oddly familiar to Aqua City/Diver City in Odaiba near the cruise terminal, Minami-Machida Grandberry Park next to Snoopy Park near the southern border with Kanagawa, Ikspiari next to DisneyLand Tokyo or Tama Center next to Sanrio Puroland. I actually recommend visiting this versus hitting Yumeshima for the Expo 2025 site (which currently has nothing in the area).