You want my professional amateur opinion?
The first two dents look smooth in some pics, and look like they have slight creases at their tops in other pics. If smooth, there is a chance they will come out completely. It's never happened for me (maybe because I have yet to work on a "smooth" dent), but seems to have happened for others.
If even slightly creased, pretty slim chance it will come out completely. But will be better. And will be closer to the Max 1/4" Bondo limit if it ends up being painted.
Couple lessons learned. You have to analyze the dent and get the tab placed perfectly. Place it and draw a Sharpie outline around it while the glue is heating up. You need to work fast before the glue starts cooling, which is immediately, and you don't want to fumble around deciding where the tab should go or placing it even a little bit off.
Second thing is a straight pull. The hand pullers pull straight, but only work on small dents. With a slide hammer, it's really easy to pull at an angle, which is not good.
The alternative is paying a professional, however those three dents will probably cost more than a body work and paint job by Jim.
The third pic I can barely see. Looks very shallow but very broad? If so, will need a few tabs in different locations. I've seen vids of multiple tabs making perfect pulls on modern thin metal autos, they use lots of light pulls, alternating between tabs. Won't work on an old tank. Light pulls do nothing.