Well that error is self explanatory - get more RAM! 
after two days of hard work I think I am happy the way this exercise came out. Can’t believe how easy it is to learn Zbrush, really can’t praise enough of this amazing software! 
Attachments
a quick play with 2.5d brushes to make the background.
Looking great! Try and create the image twice as big as you plan to use/publish it. Then when done, press the AAHalf button and everything looks smoother. Try it. In rare occasions it’s not nice what AAHalf does, I guess that’s why it is an Option:D.
Cheers
Lemo
hi Lemo, thx for the tips, also for the fab tutorial on masking!!
another exercise using zshpere. this takes me about 10 mins or so. Will put some detail on later.
put texture on the dragonfly also repose the model. Will try to refine the detail tomorrow if I got time.
Nice dragon!
Thanks Jason!
few adjustments on texture and material.
here are some pics for the mating season of dragonfly!!! :lol:
Finally! pr0n has come to zbrushcentral to 
hi souwanaplay,
that´s a great couple of dragonflies. it´s a zbrushrender?
greetings,
xbucket
it’s about time isn’t it?:lol:
yes, xbucket, it’s all done in zbrush including render. hopefully I will have more little drogonfly by tomorrow!:lol:
i always liked the way they formed a heart when they were mating.
:lol: that’s why its called making love:lol:
a new render for the larva
the last ones looks pretty cool, like that Zsphere style!
Is it “just” the material that make it look like that?
greetingz ever
hi ever,
it is rendered as zspheres that’s why it looks like zshperes. 
oh my, I think I am falling in love with zb all over again :lol: