Hi Tony,
welcome to forum
best advice I can give is take a few weeks out and read loads of threads on forum
old threads even, years old. just read
if just starting out, best advice is to just go for .com and .co.uk
as the buyers out there, domainers and endusers in blighty, really only want them
the gb.net you own are awful tbh
gb.net isn't a domain, so you are renting subdomains and the guy who owns gb.ent is getting rich
never seen one gb.net sell, ever
a few uk.com but is very rare and never much
the only two domains i see in your list of any value is:
cloudcomputingblog.co.uk
worth renewing, you may get a reasonable xxx offer one time
xxxcloud.com
this one may be your saviour
no i dont want to buy before you ask lol
but i would register if free. the only one
you may get in x,xxx range one day.possibly even more as cloud names are hot
(only good ones) combined with adult has potential to be very brandable for someone. also launch of .xxx domain will help (dont touch that extension either imo)
stick to .com and .co.uk and be selective about handregging. maybe a couple a week at tops if new
and try to buy quality cheap on aftermarket like forums
will take time to know quality
go for generic service , words or product domains. no trademarks
so my advice is take all of them off autorenew, keep those two and tbh don't even waste time trying to resell others as noone will buy
if you get an enquiry out of blue on others just take whatever offer is
you could try developing one for fun. maybe gambling.gb.net cos they can rank
and it may do ok
anyway, good luck. and remeber register no more domains yet as you're a little too obsessed with cloud domains

and you need to learn ropes first