The Sarcophaga sp. flies aren't exactly a rare species but you have achieved an interesting angle. Although possibly the second one is a fraction on the blue side?
Everybody loves jumping spiders (well nearly everybody) and you have some appealing angles there.
The other fly is OK but not such an interesting scene. I might shoot this angle for identification purposes, amongst other angles, but wouldn't consider it to be a 'display shot'.
So yes, well done.
But remember my frequent warnings about macro photography becoming addictive!