Hi, Shnarkle, and welcome to WriteWords.
If you join the Childrens Group and upload your chapter there then more people will find it - work tends to get overlooked in the Archive.
As for character description, your plans could be scuppered if Marketing decide to use a picture on the book cover with their interpretation of what the characters look like.
While I agree that the reader doesn't need much description to build up an image of the character using their imagnation, I think a little description would help - if they are furry, hairy, multi-headed, multi-armed, multi-eyed, solid, liquid, gaseous - as it all adds to those little descriptions/actions that help to break up the dialogue.
- NaomiM