What level (RCM) are these pieces?

[mango1]

I have been looking around for some new pieces to try, and I didn't know what level/how hard these pieces are:

Nocturne in Bflat -- John Field
Rondino -- Antonio Diabelli
Poem -- Zdenko Fibich
Largo -- Handel
The Cascades -- Scott Joplin
Having Fun from Op 27 (no 70) -- Kabalevsky
La Tambourin -- Rameau
Song of India -- Rimsky-Korsakov
Album Leaf op. 45 no. 1 -- Alexander Scriabin
Serenade -- Schubert
The Beautiful Blue Danube -- Johann Strauss

what rcm level are they, how challenging are they, and I am currently level 8, do you think they would be an okay level for me? I know there is a lot, but if you know even a few, please help? Thanks so much!

[quantum]

You don't have to stick to grade levels when deciding to learn new repertoire.  If you really like a piece, just try it out.  That will give you much more feedback then relying on a grade level categorization of difficulty.  Examine different sections of the piece, especially the ones that appear challenging to you. 

The Field is RCM Grade 8.