Help to improve

[reneh83905488]

I would love to improve my images, could you tell me, please, what the problem could have been with these pictures. Thank you so much in advance ! 

[Özgür Cem5F96]

Hi. first of all these are all good photos but i think these are too artistic for stock photography. 

[Jill_C · Accepted solution]

1) underexposed with very little in focus

2) underexposed, bird is not in focus and there is significant noise

3) Adobe does not accept black and white conversions