This piece is absolutely adorable. I really like the drawing programme you used, and I loved the drawing technique. The humour put into it is also great.
The only thing I would advise is that maybe it could be made just a little bit clearer, like you could have had RD and Scooty hiding somewhere else where you could see their facial expressions.
I think this is a really well thought out piece and very clever. I like how it very clearly reflects the ponies' personalities and traits. It's a really great use of colour and technique. 19 out of 20!