Welcome JuliaSG, I have to say one thing about critic, most people ask for.....

**The artist of this image has indicated the following preference for comments:
**Both critical and non-critical comments are welcomed.

But to be honest most people don't want anything but praise, or at least praise outweighing critical comment. This was true in the Bryce gallery at least, but since i'm new in the photographic forum, I haven't yet seen a problem like that.
So as pushinfaders suggests; use tact.

Excellent start to your gallery.