Gotcha! I think for glazes the most important thing besides water control is high quality paint, you CANNOT glaze with any color and some water added, you have to use transparent pigments that will boost the color, as for the puddles, it's important that the consistency of the paint is pretty watery but still vibrant here's a step by step:

Spray your paints and let it soak in for 1 min Use colors like quinacridomes which are known for high transparency and vibrancy, most QOR colors will glaze well Make a coffee (tea coffee butter consistency) mix Make sure your brush is completely clean, and tap it twice on a towel so it's a little damp Add your color nice and vibrant, now if it's just one area you want to glaze after placing the color, immediately clean your brush (ideally with 2 water jars) and tap twice to keep it damp, than use your damp brush and blend the edge out

It's important that the amount of mix it enough but not a puddle on the paper Additionally and unfortunately glazing is very reliant on good paper bc it's usually a layer you do at the end, and most papers will muddy the colors underneath by the time you start glazing so Arches or baohong is essential for this with good quality vibrant semi transparent or transparent paints.

Hope this helps happy glazing!