3D quilled flowers in a raised double frame

I had got one of my quilled work framed from Van Gogh Frames. (See my earlier post here).  I liked the raised frame that they did.  I decided to create my own double frames with handmade paper.  I tried it out and it turned out to be really good.  I decided to add some quilled flowers in it.  Here is the result:

This is a small frame, just 6x4 inches.  I have another picture which I received as a gift which is ~ 12x12 inches.  I'm creating a raised double frame to it as well.

These frames are hollow and very light weight.  They appear to be voluminous though.  Now that I am making these frames, I have all the customization options.  Only issue is that they can be easily squished.  A little pressure and they'll easily crumple.  I am trying to use fillers in the hollow space for the next frame.  I'll post those pictures when I am done.