Hi!

How can be created clouds like these using brushes like these?
What settings I have to use for the layers, and how should I combine them, because my actual results do not look at all like in those in the picture.
Thank you in advance!

Best regards!

Try a background of a gradient blue (light at top and dark at bottom) on one layer. Then on another layer, paint with white. For foreground clouds, try yet another layer on top of the two previous ones, paint more clouds with white, and set the layer to screen.

I can't really give any suggestions better than that without actually trying the brushes myself. :)

Don't know if you're aware, but you can buy cloud photos, as well as cloud brushes in the marketplace.

I know that, these are purchased.But I don't know how to use them.

I'd try what AprilGem suggested up there, that's how I'd go about it, If you stamp the cloud with white on one layer and you find it's not opaque enough, duplicate that layer and play with its opacity.  Or you could contact the vendor who made them and ask how he/she achieved that result with them.

I suppose this would be a stupid reply but why when your out and about just photograph skies and clouds.

I usually use an inner glow or drop shadow with 1or 2 pixels out and 15-30% opacity.  Also, duplicating the cloud layer and using a color overlay on the bottom layer will also produce nice results.  It depends on the background and the image you are trying to produce.  Clouds can be tricky.  If you bought brushes you should query the seller and see if they have any advice.

15  users rated the product with 5 stars, hence it must be very good.
I only recognised the name of one user, but the last user explained how to use 'em -
make certain the brush is at maximum size.

You can buy Cloud Brushes that will give you that type of effect.

Miss Nancy, what product are you talking about?

Attached Link: http://www.renderosity.com/mod/bcs/index.php?ViewProduct=41887

see att. link.  I tried to post this earlier but it didn't appear.  i would just use a free cloud image from the web (non-commercial images only).  maybe there's some technical reason why brushes are preferable to actual photos (tiff or jpeg images).  but it was weird - I've been here so long and I never saw any of those reviewers' names before, excepting ialora.

Flaming Pear had an excellent free cloud filter called "Cumulus" but it doesn't seem to be available any more.

Coldrake

Oh yes, I have those brushes in my wishlist.  May be buying them this week for a new image I'm about to start.  I usually use photos for things like this, but am curious to try brushes for a change.  May provide more flexibility.

I think people rather use the brushes because it allows you to be flexible with it.  Sometimes I use my cloud brushes to give a dust effect, a fog effect, or a smoke effect, depending on the type of cloud brush that I'm using.

Here's an example of how I added a light dust effect by using a cloud brush. http://www.renderosity.com/mod/gallery/index.php?image_id=1566892

The Photoshop tutorials section currently has a painting clouds tutorial.

I have contacted Raptura twice, but never got a reply, altough he/she read my messages.
The cloud brushes are pretty good and will give you good results if you know how to use them.But the customer support is awfull.
Other merchants are usually including a small tutorial in about how to use their products (especially if those products are tricky).But this merchant doesn't even reponds to your messages, wich left me only with this option...to post a help message here.
Thank you for your help!

Best regards!