Dopamine and Schizophrenia Synapse Diagram

I need a diagram explaining the role of dopamine and D2 receptors in the neuronal synaptic gap and their relationship to schizophrenia. Antipsychotic drugs work by blocking D2 receptors. Please draw a diagram for the following three situations: healthy person | hallucination and delusion state | after taking antipsychotic medication. Please generate a horizontal image.