First one is Ninth Wave by Ivan Aivazovsky. I like it because he did really impressive job on those waves.
I tried to stick to 1h time limit so result is sketchy and lacks detail. Should I work more on next pieces?
Things I have noticed:
-balance between detailed waves and even and slightly detailed sky
-waves create dynamic composition due to their angular position and shape
-variety between shadows on wave bottom and top of another wave
- strokes on wave surface along their direction
-emphasis on water detail - refugees are somewhat detailed but are kind of supressed by sparks on the surface and overall sea detail