The new picture is clearer. It is a nobile dendrobium.
What I meant by balanced fertilizer is one were all three elements are about the same represented by the ratio numbers on the package. 10-10-10 or 20-20-20 are common ones in the US. Use it weakly about 1 teaspoon per gallon of water once a week.
High nitrogen fertilizers are usually 30-10-10 and so called bloom boost are about 18-35-15. I would avoid both of these on mounted orchids.
Your nobile dedrobium will not flower well with high nitorgren fertilizer. It is better to stop fertilizing all together after september and resume after it flowers. Most nobiles bloom once a year in late winter or early spring. The species den probably blooms in early summer.
Your cattleya hybrid looks like Otarra Hwa Yuan Bay 'She Shu'. If it is it blooms twice a year possible three times in Thailand weather.
