Nature Journaling and Field Sketching

I used wet on dry,  think is better to detail the plants. it dries quicker. It is important to have a good paper, mine is not good quality and does not work with many layers and gets bad with a lot of water. I would like to try wet on wet, but it seems a bit difficult. To apply this on my journal, a would like to start with simple specimens, such as a leaf or a flower, not a complete landscape. Because that way, i can find a compact palette and work on less details at a time.

My biggest question is how do you keep the paper from 'buckling' using too wet of a brush? This is all new to me, and the control is going to take some time. The hint of having a test paper handy for both color matching and now this brush technique, esp dry on dry, is quite handy. I'll be using these in the field next time out. I took a pic of a stream going under a bridge because I was too frightened to try sketching it...I think I'm ready! I loved seeing how some leaves caught on the edges of the rocks while others kept floating downstream. The light playing off the stream as it came through the trees also caught my eye. I'm going to take all the time I need to sketch, then paint, this scene!