I need help with arranging bulbs in my garden bed. I have never planted bulbs before, and would love input on what you think would look the best.

I bought 50 each of -

Siberian Squill (Scilla sp.) -- tiny blue flowers,

Crocus tommasinianus "Ruby Giant"

Crocus chrysanthus "Cream Beauty" (yellow)

Eranthus hyemalis "Winter Aconite"

I am planting these in a partial sun spot under 2 deciduous trees. When the flowers emerge the location will be very sunny as the leaves don't arrive until May.

Can anyone give me tips on how to arrange the bulbs for the best effect? I guess the squill, since they are tiny flowers, should be in the front? How should I arrange the yellow & violet crocus... would it look better to mix colors or keep them seperate? Where should I plant the Eranthus bulbs?

I look forward to hearing any advice! Especially if you are familiar with these flowers!