Unexpected Benefits of the Zap Apple Tree

I don't think this has the visual quality of my previous few comics but it's been a few weeks since the last one so I'm a tad out of practice.
Also I had to draw a bird....I can't draw birds : (

Onto the comic! Those Zap Apple trees grow fast! From what I could work out they had no real indication of when to grow except when hit with magic, or at a time when it suited the magic. So what if it suited the magic when the seed was on the back of a pony? Saaaaaayy Fluttershy? Now she's part tree!

Would this be a 'Careful what you wish for' moment? Because she seams quite happy...

On a side note, does anyone know if it's better to use PNG or JPG? I know JPG compresses the image quite a bit reducing it's size... but is it worth having the extra quality despite the larger size? (In this case it's an extra 0.9 MB, almost double the size of the JPG.)

Edit: Thanks for the help! I know what I'll be doing now


MLP:FIM belongs to Hasbro.