When I look at the number of downloads, 230, and the number of scores, 10, it makes me feel a little better knowing that I was not the only one having a few problems finishing the map. lol
I have been happy getting a much lower number of downloads, but now I think I have been doing it all wrong. I must make a map that takes several tries to work out how to do it, while looking more interesting than a flat plain with loads of emitters doing random things!
Yeah, that's the consequence of creating rather hard maps; not everybody will be able to finish them or be willing to spend a few tries (or even more than a few, like you did). Keep that in mind when you make your maps harder, because people might even skip future maps after 'failing' at the first ones. I spend quite some time on the design, but never forget to keep the game play interesting, as this is always the most important part.
I think out of the many "Series" of maps being produced yours is the better one so far. But probably the hardest of the playable ones. I have my fingers cross that the future ones do not make me want to throw the laptop through the window as much as this one did.
(...)
It must be good come to think of it, as most maps if I have not managed it within 5 tries I delete it and find a different one. Took over 30 tries to finish this one. Well worth the effort.
Thanks again.

I like your perseverance and wish more people would be that eager to engage a tough challenge. Playing like that will make you gain much more experience.
Although, I did find that I could wait to place a blaster for the pool of creeper in the upper pool until I had got the first 2 Princesses and could control it from the upper tower. Then it was just a case of building enough energy and blasters to play leapfrog to reach the other 2 towers. I have no doubt there are several ways to complete this map, and that I chose the slower harder option. But I still like the map and that I finally managed to complete it.
Yep, I never let a weapon fire at creeper that is not really causing a problem at that moment. Better save the energy for the part you're working on or to create even more energy.
Thanks Upperkees. That was hard.
My score was my first finish but my fourth attempt - kept losing just before saving the princesses.
Four attempts is not bad at all; I needed several tries myself (after I tweaked the map to my likings). Thanks for playing again!
Could cut back a minute or too as I was so relieved to save everyone I relaxed a bit. 
That's indeed a moment of relieve. Better pause the game next time to start breathing again....

Of your maps, (of the ones I could finish - I understand how to do the athlete but had to leave it for a while after a load of failed attempts
) this was the hardest to strike the balance between moving forward and gaining power. Wonderfully considered, thanks. 
Yep, you have to find a balance between these two (I try to save the princesses as late as possible). There's even a 3rd consideration: when to go for the upgrades? I'm still not sure myself what would be the best balance between these three options....
Edit: typo