I really like your Anthro style for the MLP characters. They are very slim and elegant, as opposed to the majority created which just have huge breasts and sexual positions.
That said, I would really like to see Spitfire (I've personally always liked her 'brushed hair' style, no Wonderbolt suit). Really surious to see how you draw her and in what pose.
Other than that, some action shots with the anthro ponies would be neat. Also, I would be curious to see your style in drawing the ponies non-anthro.
For non-pony stuff, anthro-stylized animals (wolf, tiger, etc). Then to see what stuff you can come up with that isn't even anthro
Maybe scenery shots.
I know ... a lot of stuff ... but I'm a curious person and I like your style. ^_^