Good efforts there Jaime. The focus is a bit awry on some but I think that is down to using AF and the camera choosing a different part to focus on! The composition of the last one is nice and the abstract formed by the mass of fungi is interesting. A bit burnt out along the top rows but the rest are clear, sharp and interesting. I think you could crop in a lot closer and have a good little abstract picture there.
I've had a little go at it and put that below so you can see what you think. I just cropped it a bit tighter to keep all the focus on the subject and I cloned out some of the burnt out hotspots so that the picture is a bit more balanced. Hope you like it.
Keep up the good work and watch the focusing :o)
Cheers,
Rob